diff --git a/src/zampy/conventions/ALMA.json b/src/zampy/conventions/ALMA.json
index 1e61691..10ab4d2 100644
--- a/src/zampy/conventions/ALMA.json
+++ b/src/zampy/conventions/ALMA.json
@@ -48,14 +48,14 @@
         "units": "pascal"
     },
     "10m_u_component_of_wind": {
-        "variable": "Wind_N",
+        "variable": "Wind_E",
         "units": "meter/second",
-        "positive_dir": "northward"
+        "positive_dir": "eastward"
     },
     "10m_v_component_of_wind": {
-        "variable": "Wind_E",
+        "variable": "Wind_N",
         "units": "meter/second",
-        "positive_dir": "eastward"
+        "positive_dir": "northward"
     },
     "mean_total_precipitation_rate": {
         "variable": "Rainf",