diff --git a/premake.lua b/premake.lua
index 19ae5b3f..d6897873 100644
--- a/premake.lua
+++ b/premake.lua
@@ -38,8 +38,8 @@ end
 io.write("Default target: '"..TRIPLE.."'\n");
 
 -- x86 ABI support
-X86_REVERSE_PARAMS = 0 --disabled for now
-X86_PASS_IN_EAX = 0
+X86_REVERSE_PARAMS = 1
+X86_PASS_IN_EAX = 0 --disabled for now
 
 -- D version - don't change these !!!
 DMDV1 = "1"
diff --git a/runtime/internal/genobj.d b/runtime/internal/genobj.d
index 7bffb30b..9c4246e7 100644
--- a/runtime/internal/genobj.d
+++ b/runtime/internal/genobj.d
@@ -800,7 +800,11 @@ class TypeInfo_Struct : TypeInfo
             {   if (!p2)
                     c = 1;
                 else if (xopCmp)
-                    c = (*xopCmp)(p1, p2);
+		    // the x86 D calling conv requires the this arg to be last here
+		    version(X86)
+                        c = (*xopCmp)(p2, p1);
+		    else
+		        c = (*xopCmp)(p1, p2);
                 else
                     // BUG: relies on the GC not moving objects
                     c = memcmp(p1, p2, m_init.length);