diff --git a/spec/ruby/library/socket/addrinfo/ipv6_linklocal_spec.rb b/spec/ruby/library/socket/addrinfo/ipv6_linklocal_spec.rb
index c9c703058c..951574abc5 100644
--- a/spec/ruby/library/socket/addrinfo/ipv6_linklocal_spec.rb
+++ b/spec/ruby/library/socket/addrinfo/ipv6_linklocal_spec.rb
@@ -2,11 +2,13 @@ require_relative '../spec_helper'
 
 guard -> { SocketSpecs.ipv6_available? } do
   describe 'Addrinfo#ipv6_linklocal?' do
-    it 'returns true for a link-local address' do
-      Addrinfo.ip('fe80::').ipv6_linklocal?.should == true
-      Addrinfo.ip('fe81::').ipv6_linklocal?.should == true
-      Addrinfo.ip('fe8f::').ipv6_linklocal?.should == true
-      Addrinfo.ip('fe80::1').ipv6_linklocal?.should == true
+    platform_is_not :aix do
+      it 'returns true for a link-local address' do
+        Addrinfo.ip('fe80::').ipv6_linklocal?.should == true
+        Addrinfo.ip('fe81::').ipv6_linklocal?.should == true
+        Addrinfo.ip('fe8f::').ipv6_linklocal?.should == true
+        Addrinfo.ip('fe80::1').ipv6_linklocal?.should == true
+      end
     end
 
     it 'returns false for a regular address' do
diff --git a/spec/ruby/library/socket/addrinfo/ipv6_sitelocal_spec.rb b/spec/ruby/library/socket/addrinfo/ipv6_sitelocal_spec.rb
index 14ed6688a1..58e9f133f3 100644
--- a/spec/ruby/library/socket/addrinfo/ipv6_sitelocal_spec.rb
+++ b/spec/ruby/library/socket/addrinfo/ipv6_sitelocal_spec.rb
@@ -2,11 +2,13 @@ require_relative '../spec_helper'
 
 guard -> { SocketSpecs.ipv6_available? } do
   describe 'Addrinfo#ipv6_sitelocal?' do
-    it 'returns true for a site-local address' do
-      Addrinfo.ip('feef::').ipv6_sitelocal?.should == true
-      Addrinfo.ip('fee0::').ipv6_sitelocal?.should == true
-      Addrinfo.ip('fee2::').ipv6_sitelocal?.should == true
-      Addrinfo.ip('feef::1').ipv6_sitelocal?.should == true
+    platform_is_not :aix do
+      it 'returns true for a site-local address' do
+        Addrinfo.ip('feef::').ipv6_sitelocal?.should == true
+        Addrinfo.ip('fee0::').ipv6_sitelocal?.should == true
+        Addrinfo.ip('fee2::').ipv6_sitelocal?.should == true
+        Addrinfo.ip('feef::1').ipv6_sitelocal?.should == true
+      end
     end
 
     it 'returns false for a regular IPv6 address' do
diff --git a/spec/ruby/library/socket/addrinfo/ipv6_to_ipv4_spec.rb b/spec/ruby/library/socket/addrinfo/ipv6_to_ipv4_spec.rb
index 2f031ddde0..5d3d69f08d 100644
--- a/spec/ruby/library/socket/addrinfo/ipv6_to_ipv4_spec.rb
+++ b/spec/ruby/library/socket/addrinfo/ipv6_to_ipv4_spec.rb
@@ -11,31 +11,33 @@ guard -> { SocketSpecs.ipv6_available? } do
       addr.ip_address.should == '192.168.1.1'
     end
 
-    it 'returns an Addrinfo for ::0.0.1.1' do
-      addr = Addrinfo.ip('::0.0.1.1').ipv6_to_ipv4
+    platform_is_not :aix do
+      it 'returns an Addrinfo for ::0.0.1.1' do
+        addr = Addrinfo.ip('::0.0.1.1').ipv6_to_ipv4
 
-      addr.should be_an_instance_of(Addrinfo)
+        addr.should be_an_instance_of(Addrinfo)
 
-      addr.afamily.should    == Socket::AF_INET
-      addr.ip_address.should == '0.0.1.1'
-    end
+        addr.afamily.should    == Socket::AF_INET
+        addr.ip_address.should == '0.0.1.1'
+      end
 
-    it 'returns an Addrinfo for ::0.0.1.0' do
-      addr = Addrinfo.ip('::0.0.1.0').ipv6_to_ipv4
+      it 'returns an Addrinfo for ::0.0.1.0' do
+        addr = Addrinfo.ip('::0.0.1.0').ipv6_to_ipv4
 
-      addr.should be_an_instance_of(Addrinfo)
+        addr.should be_an_instance_of(Addrinfo)
 
-      addr.afamily.should    == Socket::AF_INET
-      addr.ip_address.should == '0.0.1.0'
-    end
+        addr.afamily.should    == Socket::AF_INET
+        addr.ip_address.should == '0.0.1.0'
+      end
 
-    it 'returns an Addrinfo for ::0.1.0.0' do
-      addr = Addrinfo.ip('::0.1.0.0').ipv6_to_ipv4
+      it 'returns an Addrinfo for ::0.1.0.0' do
+        addr = Addrinfo.ip('::0.1.0.0').ipv6_to_ipv4
 
-      addr.should be_an_instance_of(Addrinfo)
+        addr.should be_an_instance_of(Addrinfo)
 
-      addr.afamily.should    == Socket::AF_INET
-      addr.ip_address.should == '0.1.0.0'
+        addr.afamily.should    == Socket::AF_INET
+        addr.ip_address.should == '0.1.0.0'
+      end
     end
 
     it 'returns an Addrinfo for ::ffff:192.168.1.1' do
diff --git a/spec/ruby/library/socket/basicsocket/connect_address_spec.rb b/spec/ruby/library/socket/basicsocket/connect_address_spec.rb
index 03e456b620..18baac7f17 100644
--- a/spec/ruby/library/socket/basicsocket/connect_address_spec.rb
+++ b/spec/ruby/library/socket/basicsocket/connect_address_spec.rb
@@ -95,21 +95,23 @@ describe 'Socket#connect_address' do
   end
 
   with_feature :unix_socket do
-    describe 'using an unbound UNIX socket' do
-      before do
-        @path = SocketSpecs.socket_path
-        @server = UNIXServer.new(@path)
-        @client = UNIXSocket.new(@path)
-      end
+    platform_is_not :aix do
+      describe 'using an unbound UNIX socket' do
+        before do
+          @path = SocketSpecs.socket_path
+          @server = UNIXServer.new(@path)
+          @client = UNIXSocket.new(@path)
+        end
 
-      after do
-        @client.close
-        @server.close
-        rm_r(@path)
-      end
+        after do
+          @client.close
+          @server.close
+          rm_r(@path)
+        end
 
-      it 'raises SocketError' do
-        lambda { @client.connect_address }.should raise_error(SocketError)
+        it 'raises SocketError' do
+          lambda { @client.connect_address }.should raise_error(SocketError)
+        end
       end
     end
 
diff --git a/spec/ruby/library/socket/socket/gethostbyaddr_spec.rb b/spec/ruby/library/socket/socket/gethostbyaddr_spec.rb
index b5f5942668..08cadcf93b 100644
--- a/spec/ruby/library/socket/socket/gethostbyaddr_spec.rb
+++ b/spec/ruby/library/socket/socket/gethostbyaddr_spec.rb
@@ -62,7 +62,7 @@ describe 'Socket.gethostbyaddr' do
     end
   end
 
-  guard -> { SocketSpecs.ipv6_available? } do
+  guard -> { SocketSpecs.ipv6_available? && platform_is_not(:aix) } do
     describe 'using an IPv6 address' do
       before do
         @addr = IPAddr.new('::1').hton
diff --git a/spec/ruby/library/socket/unixsocket/local_address_spec.rb b/spec/ruby/library/socket/unixsocket/local_address_spec.rb
index 8c77519830..56b3ccc557 100644
--- a/spec/ruby/library/socket/unixsocket/local_address_spec.rb
+++ b/spec/ruby/library/socket/unixsocket/local_address_spec.rb
@@ -21,20 +21,24 @@ with_feature :unix_socket do
     end
 
     describe 'the returned Addrinfo' do
-      it 'uses AF_UNIX as the address family' do
-        @client.local_address.afamily.should == Socket::AF_UNIX
-      end
+      platform_is_not :aix do
+        it 'uses AF_UNIX as the address family' do
+          @client.local_address.afamily.should == Socket::AF_UNIX
+        end
 
-      it 'uses PF_UNIX as the protocol family' do
-        @client.local_address.pfamily.should == Socket::PF_UNIX
+        it 'uses PF_UNIX as the protocol family' do
+          @client.local_address.pfamily.should == Socket::PF_UNIX
+        end
       end
 
       it 'uses SOCK_STREAM as the socket type' do
         @client.local_address.socktype.should == Socket::SOCK_STREAM
       end
 
-      it 'uses an empty socket path' do
-        @client.local_address.unix_path.should == ''
+      platform_is_not :aix do
+        it 'uses an empty socket path' do
+          @client.local_address.unix_path.should == ''
+        end
       end
 
       it 'uses 0 as the protocol' do