diff --git a/platform/platform-impl/src/com/intellij/openapi/editor/impl/view/EditorSizeManager.java b/platform/platform-impl/src/com/intellij/openapi/editor/impl/view/EditorSizeManager.java
index 1eddb6f5956e..e2224e49afcd 100644
--- a/platform/platform-impl/src/com/intellij/openapi/editor/impl/view/EditorSizeManager.java
+++ b/platform/platform-impl/src/com/intellij/openapi/editor/impl/view/EditorSizeManager.java
@@ -274,7 +274,7 @@ class EditorSizeManager extends InlayModel.SimpleAdapter implements PrioritizedD
     if (myMaxLineWithExtensionWidth > 0) {
       AtomicBoolean hasExtensions = new AtomicBoolean();
       myEditor.processLineExtensions(myWidestLineWithExtension, (info) -> hasExtensions.set(true));
-      if (hasExtensions.get()) {
+      if (!hasExtensions.get()) {
         myMaxLineWithExtensionWidth = 0;
       }
     }