1 files changed, 6 insertions, 2 deletions
diff --git a/lib/matrix.rb b/lib/matrix.rb
index b4d1be33bb..cf1d532693 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -28,8 +28,12 @@ module ExceptionForMatrix # :nodoc:
   end
 
   class ErrNotRegular < StandardError
-    def initialize
-      super("Not Regular Matrix")
+    def initialize(val = nil)
+      if val
+        super(val)
+      else
+        super("Not Regular Matrix")
+      end
     end
   end