diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index 760e6baa7..2c7e0c3ec 100755
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -328,7 +328,12 @@ static int parse_source_files(const char *objfile, struct md4_ctx *md)
 
 	/* Sum all files in the same dir or subdirs. */
 	while ((line = get_line(&pos))) {
-		char* p = line;
+		char* p;
+
+		/* trim the leading spaces away */
+		while (isspace(*line))
+			line++;
+		p = line;
 
 		if (strncmp(line, "source_", sizeof("source_")-1) == 0) {
 			p = strrchr(line, ' ');