diff --git a/lib/cgo/tests/check_cipher.address.common.c b/lib/cgo/tests/check_cipher.address.common.c
index bce877630..0d0554b38 100644
--- a/lib/cgo/tests/check_cipher.address.common.c
+++ b/lib/cgo/tests/check_cipher.address.common.c
@@ -143,7 +143,7 @@ START_TEST(TestAddressFromBytes)
 
     SKY_cipher_Address_Bytes(&addr, &tempBytes);
     ck_assert_msg(tempBytes.len > 0, "address bytes written");
-    copyGoSlice_toGoSlice(&bytes, &tempBytes, tempBytes.len);
+    copyGoSlice_toGoSlice(&bytes, &tempBytes, sizeof(*buff));
     err = SKY_cipher_AddressFromBytes(bytes, &addr2);
     ck_assert_msg(err == SKY_OK, "convert bytes to SKY address");
 
diff --git a/lib/cgo/tests/check_cipher.hash.common.c b/lib/cgo/tests/check_cipher.hash.common.c
index 9a698d1e1..49b364e77 100644
--- a/lib/cgo/tests/check_cipher.hash.common.c
+++ b/lib/cgo/tests/check_cipher.hash.common.c
@@ -213,7 +213,6 @@ START_TEST(TestSHA256FromHex)
 
     // Valid hex hash
     GoString_ s2;
-    memset(&s2, 0, sizeof(GoString_));
     SKY_cipher_SHA256_Hex(&h, &s2);
     registerMemCleanup((void*)s2.p);
     cipher__SHA256 h2;