diff --git a/src/pld/gowin.c b/src/pld/gowin.c
index bbc2fe15f..939e61060 100644
--- a/src/pld/gowin.c
+++ b/src/pld/gowin.c
@@ -172,11 +172,11 @@ static int gowin_read_fs_file(struct gowin_bit_file *bit_file, const char *filen
 
 static int gowin_read_file(struct gowin_bit_file *bit_file, const char *filename, bool *is_fs)
 {
-	memset(bit_file, 0, sizeof(struct gowin_bit_file));
-
 	if (!filename || !bit_file)
 		return ERROR_COMMAND_SYNTAX_ERROR;
 
+	memset(bit_file, 0, sizeof(struct gowin_bit_file));
+
 	const char *file_suffix_pos = strrchr(filename, '.');
 	if (!file_suffix_pos) {
 		LOG_ERROR("Unable to detect filename suffix");