diff --git a/bin/cc-cli b/bin/cc-cli
index 9d35541387c583d3c8a9cdda1b45d55ef92b5ca1..5fd87a5350f602e41d59cccd78f328bbed068ac9 100755
--- a/bin/cc-cli
+++ b/bin/cc-cli
@@ -137,10 +137,10 @@ except BadArgument as e:
 except KeyboardInterrupt:
     exit(1)
 except cliError as e:
-    printer.error(str(e))
+    printer.error("cliError: %s"%str(e))
 except Exception as e:
     if cccli.debug:
-        printer.fatal(str(e), quit=False)
+        printer.fatal("%s: %s"%(type(e), str(e)), quit=False)
         raise
     printer.warn("This is a not expected error, please report it!")
     printer.fatal(str(e))
diff --git a/cccli/cli.py b/cccli/cli.py
index e1387801ff2c65a3302ee20873ade234a98ed876..130d8fb875a78530d9c4125258502b576afc5fd8 100644
--- a/cccli/cli.py
+++ b/cccli/cli.py
@@ -149,7 +149,7 @@ class Cli(object):
         except Exception as e:
             if cccli.debug:
                 raise
-            self.printer.error(str(e))
+            self.printer.error("%s: %s"%(type(e), str(e)))
             self.printer.warn("This is a not expected error, please report it!")
 
 class CliHandler(RpcHandler):