diff --git a/unittest/libmariadb/bulk1.c b/unittest/libmariadb/bulk1.c
index e1c31eaa..62267cd7 100644
--- a/unittest/libmariadb/bulk1.c
+++ b/unittest/libmariadb/bulk1.c
@@ -74,8 +74,8 @@ static int bulk1(MYSQL *mysql)
 
   /* allocate memory */
   buffer= calloc(TEST_ARRAY_SIZE, sizeof(char *));
-  lengths= (unsigned long *)calloc(sizeof(long), TEST_ARRAY_SIZE);
-  vals= (unsigned int *)calloc(sizeof(int), TEST_ARRAY_SIZE);
+  lengths= calloc(TEST_ARRAY_SIZE, sizeof *lengths);
+  vals= calloc(TEST_ARRAY_SIZE, sizeof *vals);
 
   for (i=0; i < TEST_ARRAY_SIZE; i++)
   {
diff --git a/unittest/libmariadb/ps_bugs.c b/unittest/libmariadb/ps_bugs.c
index 804ef3e3..72af30b4 100644
--- a/unittest/libmariadb/ps_bugs.c
+++ b/unittest/libmariadb/ps_bugs.c
@@ -5159,7 +5159,7 @@ static int test_maxparam(MYSQL *mysql)
   MYSQL_STMT *stmt= mysql_stmt_init(mysql);
   MYSQL_BIND* bind;
 
-  bind = calloc(sizeof(MYSQL_BIND), 65535);
+  bind = calloc(65535, sizeof *bind);
 
   rc= mysql_query(mysql, "DROP TABLE IF EXISTS t1");
   check_mysql_rc(rc, mysql);