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-rw-r--r--Src/subst.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Src/subst.c b/Src/subst.c
index f281bda50..189ecda6e 100644
--- a/Src/subst.c
+++ b/Src/subst.c
@@ -280,7 +280,7 @@ static int mult_isarr;
 
 /**/
 static int
-multsub(char **s, char ***a, int *isarr, char *sep)
+multsub(char **s, char ***a, int *isarr, UNUSED(char *sep))
 {
     int l, omi = mult_isarr;
     char **r, **p;