diff --git a/swash/processing/sws_npz.py b/swash/processing/sws_npz.py
index 516e3a5..8db2eda 100644
--- a/swash/processing/sws_npz.py
+++ b/swash/processing/sws_npz.py
@@ -32,8 +32,8 @@ var = {
     "dep": rsws.read_scalar,
     "botl": rsws.read_const,
     "watl": rsws.read_scalar,
-    "vel": rsws.read_vector,
-    "press": rsws.read_scalar,
+    "pressk": rsws.read_scalar_lay,
+    "nhprsk": rsws.read_scalar_lay,
     "zk": rsws.read_scalar_lay,
     "velk": rsws.read_vector_lay,
     "vz": rsws.read_scalar_lay,