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-rw-r--r--lisc/util.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lisc/util.c b/lisc/util.c
index c1bfa86..e62fd1a 100644
--- a/lisc/util.c
+++ b/lisc/util.c
@@ -70,7 +70,8 @@ void
 idup(Ins **pd, Ins *s, ulong n)
 {
 	free(*pd);
-	memcpy(*pd = alloc(n * sizeof(Ins)), s, n * sizeof(Ins));
+	*pd = alloc(n * sizeof(Ins));
+	memcpy(*pd, s, n * sizeof(Ins));
 }
 
 Ins *