diff --git a/tests/suites/main_test.function b/tests/suites/main_test.function
index 8a4137b..1c9804f 100644
--- a/tests/suites/main_test.function
+++ b/tests/suites/main_test.function
@@ -226,7 +226,7 @@
     return( cnt );
 }
 
-static int test_snprintf( size_t n, const char ref_buf[10], int ref_ret )
+static int test_snprintf( size_t n, const char *ref_buf, int ref_ret )
 {
     int ret;
     char buf[10] = "xxxxxxxxx";