diff --git a/source/games/sw/src/draw.cpp b/source/games/sw/src/draw.cpp
index 43679961c..0ea45dcea 100644
--- a/source/games/sw/src/draw.cpp
+++ b/source/games/sw/src/draw.cpp
@@ -1274,7 +1274,6 @@ void PreDrawStackedWater(void)
 
 void DoPlayerDiveMeter(PLAYER* pp);
 
-void polymost_drawscreen(PLAYER* pp, int tx, int ty, int tz, binangle tang, fixedhoriz thoriz, sectortype* tsect);
 
 
 void UpdateWallPortalState()