diff --git a/module/zstd/zstd.c b/module/zstd/zstd.c
index 6fb81e6f5ee3..a844d9f9a98f 100644
--- a/module/zstd/zstd.c
+++ b/module/zstd/zstd.c
@@ -75,6 +75,7 @@ static const ZSTD_customMem zstd_dctx_malloc = {
 
 enum zstd_kmem_type {
 	ZSTD_KMEM_UNKNOWN = 0,
+	ZSTD_KMEM_DEFAULT,
 	ZSTD_KMEM_POOL,
 	ZSTD_KMEM_DCTX,
 	ZSTD_KMEM_COUNT,
@@ -249,7 +250,7 @@ zstd_mempool_alloc(struct zstd_pool *zstd_mempool, size_t size)
 		mem = vmem_alloc(size, KM_NOSLEEP);
 		if (mem) {
 			mem->pool = NULL;
-			mem->kmem_type = ZSTD_KMEM_UNKNOWN;
+			mem->kmem_type = ZSTD_KMEM_DEFAULT;
 			mem->kmem_size = size;
 		}
 	} else {
@@ -578,7 +579,7 @@ zstd_dctx_alloc(void *opaque __unused, size_t size)
 {
 	size_t nbytes = sizeof (struct zstd_kmem) + size;
 	struct zstd_kmem *z = NULL;
-	enum zstd_kmem_type type = ZSTD_KMEM_UNKNOWN;
+	enum zstd_kmem_type type = ZSTD_KMEM_DEFAULT;
 
 	z = (struct zstd_kmem *)zstd_mempool_alloc(zstd_mempool_dctx, nbytes);
 	if (!z) {
@@ -619,7 +620,7 @@ zstd_free(void *opaque __unused, void *ptr)
 	enum zstd_kmem_type type;
 
 	ASSERT3U(z->kmem_type, <, ZSTD_KMEM_COUNT);
-	ASSERT3U(z->kmem_type, >=, ZSTD_KMEM_UNKNOWN);
+	ASSERT3U(z->kmem_type, >, ZSTD_KMEM_UNKNOWN);
 	type = z->kmem_type;
 	switch (type) {
 	case ZSTD_KMEM_UNKNOWN: