diff --git a/Library/ENV/pkgconfig/10.4 b/Library/ENV/pkgconfig/10.4
new file mode 120000
index 0000000000..41c25a1861
--- /dev/null
+++ b/Library/ENV/pkgconfig/10.4
@@ -0,0 +1 @@
+10.5
\ No newline at end of file
diff --git a/Library/ENV/pkgconfig/leopard/libcrypto.pc b/Library/ENV/pkgconfig/10.5/libcrypto.pc
similarity index 100%
rename from Library/ENV/pkgconfig/leopard/libcrypto.pc
rename to Library/ENV/pkgconfig/10.5/libcrypto.pc
diff --git a/Library/ENV/pkgconfig/leopard/libcurl.pc b/Library/ENV/pkgconfig/10.5/libcurl.pc
similarity index 100%
rename from Library/ENV/pkgconfig/leopard/libcurl.pc
rename to Library/ENV/pkgconfig/10.5/libcurl.pc
diff --git a/Library/ENV/pkgconfig/mountain_lion/libcurl.pc b/Library/ENV/pkgconfig/10.8/libcurl.pc
similarity index 100%
rename from Library/ENV/pkgconfig/mountain_lion/libcurl.pc
rename to Library/ENV/pkgconfig/10.8/libcurl.pc
diff --git a/Library/ENV/pkgconfig/mountain_lion/libexslt.pc b/Library/ENV/pkgconfig/10.8/libexslt.pc
similarity index 100%
rename from Library/ENV/pkgconfig/mountain_lion/libexslt.pc
rename to Library/ENV/pkgconfig/10.8/libexslt.pc
diff --git a/Library/ENV/pkgconfig/mountain_lion/libxml-2.0.pc b/Library/ENV/pkgconfig/10.8/libxml-2.0.pc
similarity index 100%
rename from Library/ENV/pkgconfig/mountain_lion/libxml-2.0.pc
rename to Library/ENV/pkgconfig/10.8/libxml-2.0.pc
diff --git a/Library/ENV/pkgconfig/mountain_lion/libxslt.pc b/Library/ENV/pkgconfig/10.8/libxslt.pc
similarity index 100%
rename from Library/ENV/pkgconfig/mountain_lion/libxslt.pc
rename to Library/ENV/pkgconfig/10.8/libxslt.pc
diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index c8b5672399..ff51ced66b 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -69,8 +69,7 @@ module HomebrewEnvExtension
     paths = []
     paths << HOMEBREW_PREFIX/'lib/pkgconfig'
     paths << HOMEBREW_PREFIX/'share/pkgconfig'
-    paths << HOMEBREW_REPOSITORY/'Library/ENV/pkgconfig/mountain_lion' if MacOS.version >= :mountain_lion
-    paths << HOMEBREW_REPOSITORY/'Library/ENV/pkgconfig/leopard' if MacOS.version <= :leopard
+    paths << HOMEBREW_REPOSITORY/"Library/ENV/pkgconfig/#{MacOS.version}"
     paths << '/usr/lib/pkgconfig'
     paths.select { |d| File.directory? d }.join(':')
   end
diff --git a/Library/Homebrew/superenv.rb b/Library/Homebrew/superenv.rb
index 79e8a396bf..36dead356c 100644
--- a/Library/Homebrew/superenv.rb
+++ b/Library/Homebrew/superenv.rb
@@ -127,8 +127,7 @@ class << ENV
     paths << "#{HOMEBREW_PREFIX}/share/pkgconfig"
     # we put our paths before X because we dupe some of the X libraries
     paths << "#{MacSystem.x11_prefix}/lib/pkgconfig" << "#{MacSystem.x11_prefix}/share/pkgconfig" if x11?
-    # Mountain Lion no longer ships some .pcs; ensure we pick up our versions
-    paths << "#{HOMEBREW_REPOSITORY}/Library/ENV/pkgconfig/mountain_lion" if MacOS.version >= :mountain_lion
+    paths << "#{HOMEBREW_REPOSITORY}/Library/ENV/pkgconfig/#{MacOS.version}"
     paths.to_path_s
   end