diff --git a/include/wine/asm.h b/include/wine/asm.h
index 66062c0ec06..01dfdb1deb8 100644
--- a/include/wine/asm.h
+++ b/include/wine/asm.h
@@ -28,7 +28,7 @@
 #endif
 
 #if defined(_WIN32) && defined(__i386__)
-# define __ASM_STDCALL(name,args) "\"" __ASM_NAME(name) "@" #args "\""
+# define __ASM_STDCALL(name,args) __ASM_NAME(name) "@" #args
 #else
 # define __ASM_STDCALL(name,args) __ASM_NAME(name)
 #endif