diff --git a/lib/ace/ext/error_marker.js b/lib/ace/ext/error_marker.js
index 28663c6d..5e87529e 100644
--- a/lib/ace/ext/error_marker.js
+++ b/lib/ace/ext/error_marker.js
@@ -108,8 +108,9 @@ exports.showErrorMarker = function(editor, dir) {
     var gutterAnno;
     if (annotations) {
         var annotation = annotations[0];
-        if (annotation.pos && annotation.column == null)
-            pos.column = annotation.pos.sc;
+        pos.column = (annotation.pos && typeof annotation.column != "number"
+            ? annotation.pos.sc
+            : annotation.column) || 0;
         pos.row = annotation.row;
         gutterAnno = editor.renderer.$gutterLayer.$annotations[pos.row];
     } else if (oldWidget) {