diff --git a/win32/winutil.c b/win32/winutil.c
index 8e47d487606..40a87006470 100644
--- a/win32/winutil.c
+++ b/win32/winutil.c
@@ -84,7 +84,6 @@ BOOL php_win32_init_random_bytes(void)
 PHP_WINUTIL_API int php_win32_get_random_bytes(unsigned char *buf, size_t size) {  /* {{{ */
 
 	BOOL ret;
-	size_t got = 0;
 
 #if 0
 	/* Currently we fail on startup, with CNG API it shows no regressions so far and is secure.
@@ -96,18 +95,21 @@ PHP_WINUTIL_API int php_win32_get_random_bytes(unsigned char *buf, size_t size)
 #endif
 
 #if ZEND_ENABLE_ZVAL_LONG64
+	BOOL call_ret;
+	size_t got = 0;
+
 	do {
 		ULONG to_read = (ULONG)(size - got);
-		ret = ret && NT_SUCCESS(BCryptGenRandom(bcrypt_algo, buf, to_read, 0));
-		if (ret) {
+		call_ret = NT_SUCCESS(BCryptGenRandom(bcrypt_algo, buf, to_read, 0));
+		if (call_ret) {
 			got += to_read;
 			buf += to_read;
 		}
-	} while (ret && got < size);
+	} while (call_ret && got < size);
+	ret = (got == size);
 #else
 	ret = NT_SUCCESS(BCryptGenRandom(bcrypt_algo, buf, size, 0));
 #endif
-	assert(got == size);
 
 	return ret ? SUCCESS : FAILURE;
 }