diff -r 68c86c9957d8 -r 8ff66ae5ffcc extensions/sdktools/vcaller.cpp
--- a/extensions/sdktools/vcaller.cpp	Wed Oct 09 09:12:46 2013 -0400
+++ b/extensions/sdktools/vcaller.cpp	Sun Oct 13 14:14:51 2013 -0400
@@ -129,7 +129,15 @@
 		{
 			return 0;
 		}
-#if (SOURCE_ENGINE == SE_CSS) || (SOURCE_ENGINE == SE_HL2DM) || (SOURCE_ENGINE == SE_DODS) || (SOURCE_ENGINE == SE_TF2) || (SOURCE_ENGINE == SE_LEFT4DEAD) || (SOURCE_ENGINE == SE_LEFT4DEAD2) || (SOURCE_ENGINE == SE_NUCLEARDAWN) || (SOURCE_ENGINE == SE_CSGO)
+#if SOURCE_ENGINE == SE_CSS            \
+	|| SOURCE_ENGINE == SE_HL2DM       \
+	|| SOURCE_ENGINE == SE_DODS        \
+	|| SOURCE_ENGINE == SE_SDK2013     \
+	|| SOURCE_ENGINE == SE_TF2         \
+	|| SOURCE_ENGINE == SE_LEFT4DEAD   \
+	|| SOURCE_ENGINE == SE_LEFT4DEAD2  \
+	|| SOURCE_ENGINE == SE_NUCLEARDAWN \
+	|| SOURCE_ENGINE == SE_CSGO
 		s_call_addr = memutils->ResolveSymbol(handle, &sig[1]);
 #else
 		s_call_addr = dlsym(handle, &sig[1]);