diff --git a/src/checkstyle/com/puppycrawl/tools/checkstyle/Checker.java b/src/checkstyle/com/puppycrawl/tools/checkstyle/Checker.java
index e5cf2e116..5d2964775 100644
--- a/src/checkstyle/com/puppycrawl/tools/checkstyle/Checker.java
+++ b/src/checkstyle/com/puppycrawl/tools/checkstyle/Checker.java
@@ -157,7 +157,8 @@ public class Checker extends AutomaticBean
             catch (Exception ex) {
                 // TODO i18n
                 throw new CheckstyleException(
-                        "cannot initialize filesetcheck of class " + className);
+                        "cannot initialize filesetcheck of class "
+                        + className + " - " + ex.getMessage());
             }
         }
     }