diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 2781b0991..676230fa3 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,5 +1,9 @@
 D1X-Rebirth Changelog
 
+20110121
+--------
+main/render.c: Protection for negative array index in find_seg_side was accidentially checking for vv1 != -1 - fixed that
+
 20110120
 --------
 arch/sdl/jukebox.c, main/digi.h, main/menu.c, main/songs.c: Added a simple random function for the Jukebox; Removed one small printf I once added for debugging
diff --git a/main/render.c b/main/render.c
index e5da1d6ba..46493c7ec 100644
--- a/main/render.c
+++ b/main/render.c
@@ -919,7 +919,7 @@ int find_seg_side(segment *seg,short *verts,int notside)
 		}
 	}
 
-	if (vv0 == -1 || vv1 != -1)
+	if (vv0 == -1 || vv1 == -1)
 		return -1;
 
 	eptr = Edge_to_sides[vv0][vv1];