diff --git a/src/x86.h b/src/x86.h
index d746083c3b..6a6f0e0935 100644
--- a/src/x86.h
+++ b/src/x86.h
@@ -58,11 +58,25 @@ dynamicCall(void* function, uintptr_t* arguments, uint8_t*,
 #  define THREAD_REGISTER(context) (context->uc_mcontext.gregs[REG_RBX])
 
 extern "C" uint64_t
+#ifdef __WINDOWS__
+vmNativeCall(void* function, void* stack, unsigned stackSize,
+             unsigned returnType);
+#elif defined __LINUX__
+
 vmNativeCall(void* function, void* stack, unsigned stackSize,
              void* gprTable, void* sseTable, unsigned returnType);
+#endif //def __WINDOWS__
 
 namespace vm {
 
+#ifdef __WINDOWS__
+inline uint64_t
+dynamicCall(void* function, uint64_t* arguments, UNUSED uint8_t* argumentTypes,
+            unsigned argumentCount, unsigned, unsigned returnType)
+{
+  return vmNativeCall(function, arguments, argumentCount, returnType);
+}
+#elif defined __LINUX__
 inline uint64_t
 dynamicCall(void* function, uint64_t* arguments, uint8_t* argumentTypes,
             unsigned argumentCount, unsigned, unsigned returnType)
@@ -103,6 +117,7 @@ dynamicCall(void* function, uint64_t* arguments, uint8_t* argumentTypes,
                       (gprIndex ? gprTable : 0),
                       (sseIndex ? sseTable : 0), returnType);
 }
+#endif //def __WINDOWS__
 
 } // namespace vm