diff --git a/cddl/contrib/opensolaris/common/ctf/ctf_hash.c b/cddl/contrib/opensolaris/common/ctf/ctf_hash.c
index 5a36fbbd88cf..adab84efde76 100644
--- a/cddl/contrib/opensolaris/common/ctf/ctf_hash.c
+++ b/cddl/contrib/opensolaris/common/ctf/ctf_hash.c
@@ -77,9 +77,8 @@ ctf_hash_compute(const char *key, size_t len)
 {
 	ulong_t g, h = 0;
 	const char *p, *q = key + len;
-	size_t n = 0;
 
-	for (p = key; p < q; p++, n++) {
+	for (p = key; p < q; p++) {
 		h = (h << 4) + *p;
 
 		if ((g = (h & 0xf0000000)) != 0) {