diff --git a/platform/projectModel-impl/src/com/intellij/openapi/module/impl/ModuleManagerImpl.java b/platform/projectModel-impl/src/com/intellij/openapi/module/impl/ModuleManagerImpl.java
index ad1cf573af89..2ce8c4d3b17d 100644
--- a/platform/projectModel-impl/src/com/intellij/openapi/module/impl/ModuleManagerImpl.java
+++ b/platform/projectModel-impl/src/com/intellij/openapi/module/impl/ModuleManagerImpl.java
@@ -327,7 +327,7 @@ public abstract class ModuleManagerImpl extends ModuleManager implements Disposa
           if (oldModule != null) {
             //Map<String, VirtualFilePointer> track1 = ContentEntryImpl.track;
             //VirtualFilePointer pointer = track1.get(url);
-            LOG.error("duplicated content url: " + url);
+            LOG.error("Module '" + module.getName() + "' and module '" + oldModule.getName() + "' have the same content root: " + url);
           }
         }
       }