diff --git a/plugin/server_audit/server_audit.c b/plugin/server_audit/server_audit.c
index 38046de61f9..37f0a9776c1 100644
--- a/plugin/server_audit/server_audit.c
+++ b/plugin/server_audit/server_audit.c
@@ -1235,7 +1235,7 @@ static int write_log(const char *message, size_t len)
   if (output_type == OUTPUT_FILE)
   {
     if (logfile &&
-        (is_active= (logger_write(logfile, message, len) == len)))
+        (is_active= (logger_write(logfile, message, len) == (ssize_t)len)))
       return 0;
     ++log_write_failures;
     return 1;
diff --git a/sql/strfunc.cc b/sql/strfunc.cc
index 43089684061..f701c4a09ed 100644
--- a/sql/strfunc.cc
+++ b/sql/strfunc.cc
@@ -158,7 +158,7 @@ uint find_type2(const TYPELIB *typelib, const char *x, size_t length,
   int pos;
   const char *j;
   DBUG_ENTER("find_type2");
-  DBUG_PRINT("enter",("x: '%.*s'  lib: %p", length, x, typelib));
+  DBUG_PRINT("enter",("x: '%.*s'  lib: %p", (int)length, x, typelib));
 
   if (!typelib->count)
   {