diff --git a/plugins/generate-tostring/src/org/jetbrains/generate/tostring/template/TemplateResource.java b/plugins/generate-tostring/src/org/jetbrains/generate/tostring/template/TemplateResource.java
index d0ff33a96e7a..4b828c37c091 100644
--- a/plugins/generate-tostring/src/org/jetbrains/generate/tostring/template/TemplateResource.java
+++ b/plugins/generate-tostring/src/org/jetbrains/generate/tostring/template/TemplateResource.java
@@ -109,7 +109,7 @@ public class TemplateResource implements Serializable {
 
     // skip the starting and ending { }
     final String trimmed = s.trim();
-    return trimmed.substring(1, s.length() - 1);
+    return trimmed.substring(1, trimmed.length() - 1);
   }
 
   /**