diff --git a/indra/llmath/llmath.h b/indra/llmath/llmath.h
index 7a5d51ff768609bf384029c81ea69a94424f8aeb..209b506c3043710f5b7aa655044f4b837102ef2d 100644
--- a/indra/llmath/llmath.h
+++ b/indra/llmath/llmath.h
@@ -203,7 +203,7 @@ inline S32 llfloor( F32 f )
 		}
 		return result;
 #else
-		return (S32)floor(f);
+		return (S32)floorf(f);
 #endif
 }