diff --git a/src/bin/pg_controldata/pg_controldata.cpp b/src/bin/pg_controldata/pg_controldata.cpp
index 4df4364a1..8ebaca9ef 100644
--- a/src/bin/pg_controldata/pg_controldata.cpp
+++ b/src/bin/pg_controldata/pg_controldata.cpp
@@ -305,7 +305,7 @@ int main(int argc, char* argv[])
         }
 
         if (DataDir[0] != '+') {
-            fprintf(stderr, _("%s: DATADIR should be specified when enable dss\n"), progname);
+            fprintf(stderr, _("%s: the DATADIR is not correct with enable dss."), progname);
             exit_safely(1);
         }
     }