diff --git a/source/blood/src/db.h b/source/blood/src/db.h
index 4552cddea..537e6fb9f 100644
--- a/source/blood/src/db.h
+++ b/source/blood/src/db.h
@@ -280,7 +280,7 @@ extern unsigned short nextXSector[kMaxXSectors];
 #ifdef YAX_ENABLE
 static inline bool yax_hasnextwall(int nWall)
 {
-    return yax_getnextwall(nWall, YAX_CEILING) >= 0 || yax_getnextwall(nWall, YAX_FLOOR);
+    return yax_getnextwall(nWall, YAX_CEILING) >= 0 || yax_getnextwall(nWall, YAX_FLOOR) >= 0;
 }
 #endif