diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index 22bc18c..f955e3d 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -6,7 +6,7 @@
 #include "mbedtls/oid.h"
 #include "mbedtls/base64.h"
 
-int verify_none( void *data, mbedtls_x509_crt *crt, int certificate_depth, int *flags )
+int verify_none( void *data, mbedtls_x509_crt *crt, int certificate_depth, uint32_t *flags )
 {
     ((void) data);
     ((void) crt);
@@ -16,7 +16,7 @@
     return 0;
 }
 
-int verify_all( void *data, mbedtls_x509_crt *crt, int certificate_depth, int *flags )
+int verify_all( void *data, mbedtls_x509_crt *crt, int certificate_depth, uint32_t *flags )
 {
     ((void) data);
     ((void) crt);
@@ -126,9 +126,9 @@
     mbedtls_x509_crt   crt;
     mbedtls_x509_crt   ca;
     mbedtls_x509_crl    crl;
-    int         flags = 0;
+    uint32_t         flags = 0;
     int         res;
-    int (*f_vrfy)(void *, mbedtls_x509_crt *, int, int *) = NULL;
+    int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *) = NULL;
     char *      cn_name = NULL;
 
     mbedtls_x509_crt_init( &crt );
@@ -154,7 +154,7 @@
     res = mbedtls_x509_crt_verify( &crt, &ca, &crl, cn_name, &flags, f_vrfy, NULL );
 
     TEST_ASSERT( res == ( result ) );
-    TEST_ASSERT( flags == ( flags_result ) );
+    TEST_ASSERT( flags == (uint32_t)( flags_result ) );
 
 exit:
     mbedtls_x509_crt_free( &crt );