diff --git a/lib/codemirror.js b/lib/codemirror.js
index e485219c18..65126e0587 100644
--- a/lib/codemirror.js
+++ b/lib/codemirror.js
@@ -1432,15 +1432,17 @@ window.CodeMirror = (function() {
     if (!captureMiddleClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
 
     on(d.scroller, "scroll", function() {
-      setScrollTop(cm, d.scroller.scrollTop);
-      setScrollLeft(cm, d.scroller.scrollLeft, true);
-      signal(cm, "scroll", cm);
+      if (d.scroller.clientHeight) {
+        setScrollTop(cm, d.scroller.scrollTop);
+        setScrollLeft(cm, d.scroller.scrollLeft, true);
+        signal(cm, "scroll", cm);
+      }
     });
     on(d.scrollbarV, "scroll", function() {
-      setScrollTop(cm, d.scrollbarV.scrollTop);
+      if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop);
     });
     on(d.scrollbarH, "scroll", function() {
-      setScrollLeft(cm, d.scrollbarH.scrollLeft);
+      if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft);
     });
 
     on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});