diff --git a/spec/ruby/library/socket/basicsocket/recvmsg_nonblock_spec.rb b/spec/ruby/library/socket/basicsocket/recvmsg_nonblock_spec.rb
index 30f74a2164..c382268ca4 100644
--- a/spec/ruby/library/socket/basicsocket/recvmsg_nonblock_spec.rb
+++ b/spec/ruby/library/socket/basicsocket/recvmsg_nonblock_spec.rb
@@ -156,7 +156,7 @@ describe 'BasicSocket#recvmsg_nonblock' do
 
           describe 'the returned Array' do
             before do
-              platform_is(:freebsd) { IO.select([@socket]) }
+              platform_is(:darwin, :freebsd) { IO.select([@socket]) }
               @array = @socket.recvmsg_nonblock
             end
 
diff --git a/spec/ruby/library/socket/constants/constants_spec.rb b/spec/ruby/library/socket/constants/constants_spec.rb
index 2a218c7c5d..81ba4ed17b 100644
--- a/spec/ruby/library/socket/constants/constants_spec.rb
+++ b/spec/ruby/library/socket/constants/constants_spec.rb
@@ -89,10 +89,10 @@ describe "Socket::Constants" do
 
   platform_is_not :windows do
     it 'defines SCM options' do
-      platform_is :freebsd do
+      platform_is :darwin, :freebsd do
         Socket::Constants.should have_constant('SCM_CREDS')
       end
-      platform_is_not :freebsd do
+      platform_is_not :darwin, :freebsd do
         Socket::Constants.should have_constant('SCM_CREDENTIALS')
       end
     end
diff --git a/spec/ruby/library/socket/socket/recvfrom_nonblock_spec.rb b/spec/ruby/library/socket/socket/recvfrom_nonblock_spec.rb
index 5437e9b0bb..c1239ae637 100644
--- a/spec/ruby/library/socket/socket/recvfrom_nonblock_spec.rb
+++ b/spec/ruby/library/socket/socket/recvfrom_nonblock_spec.rb
@@ -37,7 +37,7 @@ describe 'Socket#recvfrom_nonblock' do
         before do
           @client.write('hello')
 
-          platform_is(:freebsd) { IO.select([@server]) }
+          platform_is(:darwin, :freebsd) { IO.select([@server]) }
         end
 
         platform_is_not :windows do
@@ -54,7 +54,7 @@ describe 'Socket#recvfrom_nonblock' do
             5.times do
               @client.write('hello')
 
-              platform_is(:freebsd) { IO.select([@server]) }
+              platform_is(:darwin, :freebsd) { IO.select([@server]) }
 
               msg, _ = @server.recvfrom_nonblock(5)
 
diff --git a/spec/ruby/library/socket/udpsocket/recvfrom_nonblock_spec.rb b/spec/ruby/library/socket/udpsocket/recvfrom_nonblock_spec.rb
index 8c9d598676..015109a052 100644
--- a/spec/ruby/library/socket/udpsocket/recvfrom_nonblock_spec.rb
+++ b/spec/ruby/library/socket/udpsocket/recvfrom_nonblock_spec.rb
@@ -41,7 +41,7 @@ describe 'UDPSocket#recvfrom_nonblock' do
           before do
             @client.write('hello')
 
-            platform_is(:freebsd) { IO.select([@server]) }
+            platform_is(:darwin, :freebsd) { IO.select([@server]) }
           end
 
           it 'returns an Array containing the data and an Array' do