diff --git a/src/hardware/hw_main.h b/src/hardware/hw_main.h
index ce0e66b4d..e46aa9801 100644
--- a/src/hardware/hw_main.h
+++ b/src/hardware/hw_main.h
@@ -57,6 +57,7 @@ UINT8 *HWR_GetScreenshot(void);
 boolean HWR_Screenshot(const char *pathname);
 
 void HWR_AddCommands(void);
+void HWR_AddSessionCommands(void);
 void HWR_CorrectSWTricks(void);
 void transform(float *cx, float *cy, float *cz);
 FBITFIELD HWR_TranstableToAlpha(INT32 transtablenum, FSurfaceInfo *pSurf);