diff --git a/lib/fog/aws/requests/compute/describe_subnets.rb b/lib/fog/aws/requests/compute/describe_subnets.rb
index 5272bc0bc..2204d7c4c 100644
--- a/lib/fog/aws/requests/compute/describe_subnets.rb
+++ b/lib/fog/aws/requests/compute/describe_subnets.rb
@@ -46,6 +46,14 @@ module Fog
         def describe_subnets(filters = {})
           subnets = self.data[:subnets]
 
+          # Transition from pending to available
+          subnets.each do |subnet|
+            case subnet['state']
+              when 'pending'
+                subnet['state'] = 'available'
+            end
+          end
+
           if filters['subnet-id']
             subnets = subnets.reject {|subnet| subnet['subnetId'] != filters['subnet-id']}
           end
diff --git a/lib/fog/aws/requests/compute/describe_vpcs.rb b/lib/fog/aws/requests/compute/describe_vpcs.rb
index 10e2c9e8e..9511ad9ef 100644
--- a/lib/fog/aws/requests/compute/describe_vpcs.rb
+++ b/lib/fog/aws/requests/compute/describe_vpcs.rb
@@ -43,6 +43,14 @@ module Fog
         def describe_vpcs(filters = {})
           vpcs = self.data[:vpcs]
 
+          # Transition from pending to available
+          vpcs.each do |vpc|
+            case vpc['state']
+              when 'pending'
+                vpc['state'] = 'available'
+            end
+          end
+
           if filters['vpc-id']
             vpcs = vpcs.reject {|vpc| vpc['vpcId'] != filters['vpc-id']}
           end