diff --git a/public/smsdk_ext.h b/public/smsdk_ext.h
index e73e5078..9e86aa12 100644
--- a/public/smsdk_ext.h
+++ b/public/smsdk_ext.h
@@ -103,6 +103,10 @@
 #include <eiface.h>
 #endif
 
+#if !defined METAMOD_PLAPI_VERSION
+#include <metamod_wrappers.h>
+#endif
+
 using namespace SourceMod;
 using namespace SourcePawn;