diff --git a/pdex/src/processing/mode/experimental/ErrorBar.java b/pdex/src/processing/mode/experimental/ErrorBar.java
index b858dcdbb..037f98d83 100755
--- a/pdex/src/processing/mode/experimental/ErrorBar.java
+++ b/pdex/src/processing/mode/experimental/ErrorBar.java
@@ -149,7 +149,8 @@ public class ErrorBar extends JPanel {
 
 		// NOTE TO SELF: ErrorMarkers are calculated for the present tab only
 		// Error Marker index in the arraylist is LOCALIZED for current tab.
-		// Also, need to do the update in the UI thread to prevent concurrency issues. 
+		// Also, need to do the update in the UI thread via SwingWorker to prevent
+	  // concurrency issues. 
 		final int fheight = this.getHeight();
 		SwingWorker<Object, Object> worker = new SwingWorker<Object, Object>() {
 
@@ -178,7 +179,7 @@ public class ErrorBar extends JPanel {
             for (Problem problem : problems) {
               if (problem.getTabIndex() == currentTab) {
                 // Ratio of error line to total lines
-                float y = (problem.getLineNumber() - errorCheckerService.defaultImportsOffset)
+                float y = (problem.getLineNumber() + 1)
                     / ((float) totalLines);
                 // Ratio multiplied by height of the error bar
                 y *= fheight - 15; // -15 is just a vertical offset