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-rw-r--r--sub/find_subfiles.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sub/find_subfiles.c b/sub/find_subfiles.c
index 691c0148d3..a5b1bdeb22 100644
--- a/sub/find_subfiles.c
+++ b/sub/find_subfiles.c
@@ -208,7 +208,7 @@ static void filter_subidx(struct subfn **slist, int *nsub)
if (case_endswith(fname, ".idx")) {
prev = fname;
} else if (case_endswith(fname, ".sub")) {
- if (strncmp(prev, fname, strlen(fname) - 4) == 0)
+ if (prev && strncmp(prev, fname, strlen(fname) - 4) == 0)
(*slist)[n].priority = -1;
}
}