diff --git a/src/nouveau/compiler/nak_nir_lower_cmat.c b/src/nouveau/compiler/nak_nir_lower_cmat.c
index 49315f23bdb..c12cf28bce6 100644
--- a/src/nouveau/compiler/nak_nir_lower_cmat.c
+++ b/src/nouveau/compiler/nak_nir_lower_cmat.c
@@ -1104,5 +1104,6 @@ nak_nir_lower_cmat(nir_shader *nir, const struct nak_compiler *nak)
          progress = true;
    }
 
+   _mesa_hash_table_destroy(type_mapping, NULL);
    return progress;
 }