diff --git a/lib/ace/layer/marker.js b/lib/ace/layer/marker.js
index 37e038b5..5548ce51 100644
--- a/lib/ace/layer/marker.js
+++ b/lib/ace/layer/marker.js
@@ -155,7 +155,7 @@ var Marker = function(parentEl) {
 
         // all the complete lines
         height = (range.end.row - range.start.row - 1) * config.lineHeight;
-        if (height < 0)
+        if (height <= 0)
             return;
         top = this.$getTop(range.start.row + 1, config);