diff --git a/source/src/physics.cpp b/source/src/physics.cpp
index ba81026b..620befbb 100644
--- a/source/src/physics.cpp
+++ b/source/src/physics.cpp
@@ -250,12 +250,6 @@ bool collide(physent *d, bool spawn, float drop, float rise)
     return true;
 }
 
-float floor(short x, short y)
-{
-    sqr *s = S(x, y);
-    return s->type == FHF ? s->floor-(s->vdelta+S(x+1,y)->vdelta+S(x,y+1)->vdelta+S(x+1,y+1)->vdelta)/16.0f : s->floor;
-}
-
 VARP(maxroll, 0, 0, 20);
 VAR(recoilbackfade, 0, 100, 1000);
 
diff --git a/source/src/protos.h b/source/src/protos.h
index 9e7f882e..90106c71 100644
--- a/source/src/protos.h
+++ b/source/src/protos.h
@@ -536,7 +536,6 @@ extern void entinmap(physent *d);
 extern void physicsframe();
 extern void mousemove(int dx, int dy);
 extern void fixcamerarange(physent *cam = camera1);
-extern float floor(short x, short y);
 extern void updatecrouch(playerent *p, bool on);
 extern bool objcollide(physent *d, vec &objpos, float objrad, float objheight);
 extern bool collide(physent *d, bool spawn = false, float drop = 0, float rise = 0);