diff --git a/sql/sql_partition.cc b/sql/sql_partition.cc
index ac098d57c24..ad9eec1906a 100644
--- a/sql/sql_partition.cc
+++ b/sql/sql_partition.cc
@@ -1866,7 +1866,7 @@ static int add_quoted_string(File fptr, const char *quotestr)
   String escapedstr;
   int err= add_string(fptr, "'");
   err+= append_escaped(&escapedstr, &orgstr);
-  err+= add_string(fptr, escapedstr.c_ptr());
+  err+= add_string(fptr, escapedstr.c_ptr_safe());
   return err + add_string(fptr, "'");
 }