diff --git a/tests/regress/memleak_sparc.c b/tests/regress/memleak_sparc.c
index 049ebda5..b3dd81e7 100644
--- a/tests/regress/memleak_sparc.c
+++ b/tests/regress/memleak_sparc.c
@@ -55,7 +55,7 @@ static void test_sparc(void)
     printf("Emulate SPARC code\n");
 
     // Initialize emulator in Sparc mode
-    err = uc_open(UC_ARCH_SPARC, UC_MODE_32, &uc);
+    err = uc_open(UC_ARCH_SPARC, UC_MODE_SPARC32|UC_MODE_BIG_ENDIAN, &uc);
     if (err) {
         printf("Failed on uc_open() with error returned: %u (%s)\n",
                 err, uc_strerror(err));