diff --git a/renderdoc/common/result.h b/renderdoc/common/result.h
index e56332a97..690f171fc 100644
--- a/renderdoc/common/result.h
+++ b/renderdoc/common/result.h
@@ -55,35 +55,35 @@ DECLARE_REFLECTION_STRUCT(RDResult);
 
 // helper macros since we often want to print the error message that gets returned.
 // one helper returns immediately, the other sets a result and prints - to allow cleanup
-#define RETURN_ERROR_RESULT_INTERNAL(code, msg, ...)                                   \
-  do                                                                                   \
-  {                                                                                    \
-    RDResult res##__LINE__(code, StringFormat::Fmt(STRING_LITERAL(msg), __VA_ARGS__)); \
-    RDCERR("%s", res##__LINE__.message.c_str());                                       \
-    return res##__LINE__;                                                              \
-  } while((void)0, 0)
+#define RETURN_ERROR_RESULT_INTERNAL(code, msg, ...)                                           \
+  do                                                                                           \
+  {                                                                                            \
+    RDResult CONCAT(res, __LINE__)(code, StringFormat::Fmt(STRING_LITERAL(msg), __VA_ARGS__)); \
+    RDCERR("%s", CONCAT(res, __LINE__).message.c_str());                                       \
+    return CONCAT(res, __LINE__);                                                              \
+  } while(0)
 
 #define SET_ERROR_RESULT_INTERNAL(res, code, msg, ...)                         \
   do                                                                           \
   {                                                                            \
     res = RDResult(code, StringFormat::Fmt(STRING_LITERAL(msg), __VA_ARGS__)); \
     RDCERR("%s", res.message.c_str());                                         \
-  } while((void)0, 0)
+  } while(0)
 
-#define RETURN_WARNING_RESULT_INTERNAL(code, msg, ...)                                 \
-  do                                                                                   \
-  {                                                                                    \
-    RDResult res##__LINE__(code, StringFormat::Fmt(STRING_LITERAL(msg), __VA_ARGS__)); \
-    RDCWARN("%s", res##__LINE__.message.c_str());                                      \
-    return res##__LINE__;                                                              \
-  } while((void)0, 0)
+#define RETURN_WARNING_RESULT_INTERNAL(code, msg, ...)                                         \
+  do                                                                                           \
+  {                                                                                            \
+    RDResult CONCAT(res, __LINE__)(code, StringFormat::Fmt(STRING_LITERAL(msg), __VA_ARGS__)); \
+    RDCWARN("%s", CONCAT(res, __LINE__).message.c_str());                                      \
+    return CONCAT(res, __LINE__);                                                              \
+  } while(0)
 
 #define SET_WARNING_RESULT_INTERNAL(res, code, msg, ...)                       \
   do                                                                           \
   {                                                                            \
     res = RDResult(code, StringFormat::Fmt(STRING_LITERAL(msg), __VA_ARGS__)); \
     RDCWARN("%s", res.message.c_str());                                        \
-  } while((void)0, 0)
+  } while(0)
 
 // VS automatically elides any trailing comma if there are no arguments above. GCC/Clang are
 // stricter and may fail, so we add an extra 0 since it won't get processed by the format anyway