diff --git a/extensions/sdk/smsdk_ext.cpp b/extensions/sdk/smsdk_ext.cpp
index 3bd1ffe2..01e3f42c 100644
--- a/extensions/sdk/smsdk_ext.cpp
+++ b/extensions/sdk/smsdk_ext.cpp
@@ -4,6 +4,7 @@
 IShareSys *g_pShareSys = NULL;
 IExtension *myself = NULL;
 IHandleSys *g_pHandleSys = NULL;
+ISourceMod *g_pSM = NULL;
 
 PLATFORM_EXTERN_C IExtensionInterface *GetSMExtAPI()
 {
@@ -38,6 +39,7 @@ bool SDKExtension::OnExtensionLoad(IExtension *me, IShareSys *sys, char *error,
 #endif
 
 	SM_GET_IFACE(HANDLESYSTEM, g_pHandleSys);
+	SM_GET_IFACE(SOURCEMOD, g_pSM);
 
 	if (SDK_OnLoad(error, err_max, late))
 	{
diff --git a/extensions/sdk/smsdk_ext.h b/extensions/sdk/smsdk_ext.h
index f4d30711..07362c78 100644
--- a/extensions/sdk/smsdk_ext.h
+++ b/extensions/sdk/smsdk_ext.h
@@ -6,6 +6,7 @@
 #include <IHandleSys.h>
 #include <sp_vm_api.h>
 #include <sm_platform.h>
+#include <ISourceMod.h>
 
 #if defined SMEXT_CONF_METAMOD
 #include <ISmmPlugin.h>
@@ -121,6 +122,7 @@ extern SDKExtension *g_pExtensionIface;
 extern IShareSys *g_pShareSys;
 extern IExtension *myself;
 extern IHandleSys *g_pHandleSys;
+extern ISourceMod *g_pSM;
 
 #if defined SMEXT_CONF_METAMOD
 PLUGIN_GLOBALVARS();