diff -r 87f951bece2d -r 0b4e4eaa581c core/sourcemm_api.cpp
--- a/core/sourcemm_api.cpp	Thu Oct 29 00:06:12 2009 -0700
+++ b/core/sourcemm_api.cpp	Thu Oct 29 00:53:31 2009 -0700
@@ -205,7 +205,7 @@
 	}
 }
 
-#if defined METAMOD_PLAPI_VERSION
+#if defined METAMOD_PLAPI_VERSION || PLAPI_VERSION >= 11
 
 void SourceMod_Core::OnUnlinkConCommandBase(PluginId id, ConCommandBase *pCommand)
 {