diff --git a/src/d_main.c b/src/d_main.c
index a959a8632..0a3fae3b5 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -509,7 +509,6 @@ static void D_Display(void)
 // =========================================================================
 
 tic_t rendergametic;
-boolean supdate;
 
 void D_SRB2Loop(void)
 {
@@ -600,7 +599,6 @@ void D_SRB2Loop(void)
 
 			// Update display, next frame, with current state.
 			D_Display();
-			supdate = false;
 
 			if (moviemode)
 				M_SaveFrame();
diff --git a/src/d_main.h b/src/d_main.h
index 800b61f53..c5ce19ef4 100644
--- a/src/d_main.h
+++ b/src/d_main.h
@@ -17,7 +17,6 @@
 #include "d_event.h"
 #include "w_wad.h"   // for MAX_WADFILES
 
-extern boolean supdate;
 extern boolean advancedemo;
 
 // make sure not to write back the config until it's been correctly loaded