diff --git a/source/build/src/clip.cpp b/source/build/src/clip.cpp
index 1a78fe3c2..7284f0fd4 100644
--- a/source/build/src/clip.cpp
+++ b/source/build/src/clip.cpp
@@ -871,7 +871,7 @@ static int cliptestsector(int const dasect, int const nextsect, int32_t const fl
 
             ((sec2->ceilingstat&1) == 0 && 
             posz <= dacz2+(ceildist-1) &&
-            dacz2 > dacz /*+CLIPCURBHEIGHT*/));  // ceilings check the same conditions ^^^^^
+            dacz2 > dacz+CLIPCURBHEIGHT));  // ceilings check the same conditions ^^^^^
 }
 
 int32_t clipmovex(vec3_t *pos, int16_t *sectnum,