1 files changed, 1 insertions, 1 deletions
diff --git a/sercp.c b/sercp.c
index 5e795c9..abfa3b1 100644
--- a/sercp.c
+++ b/sercp.c
@@ -548,7 +548,7 @@ void sercpSend(void) {
 		printf ("Zero length of file. End\n");
 		return;
 	}
-	printf ("File %s, length: %ld\n", sercp_file, st.st_size);
+	printf ("File %s, length: %lld\n", sercp_file, st.st_size);
 	timdat = localtime(&st.st_mtime);
 
 	uint16_t FatDate = ((timdat->tm_year - 80) << 9) | ((timdat->tm_mon + 1) << 5) | timdat->tm_mday;