diff --git a/modules/aeolus/aeolus_amv.py b/modules/aeolus/aeolus_amv.py
index 1de7110e8d9e31f3ac419a90e1e783644feadbed..0c266deb291308ebf39355fff586ddd2b6d3c090 100644
--- a/modules/aeolus/aeolus_amv.py
+++ b/modules/aeolus/aeolus_amv.py
@@ -652,7 +652,7 @@ def subset_by_time(match_file, dt_str_0, dt_str_1, amv_var_names):
         for k in range(nvars):
             amvs[idx, 0:n_amvs, k] = a_nc_vars[k][a:b]
 
-        for k in range(nvars):
+        for k in range(npvars):
             profs[idx, 0:n_levs, k] = p_vars[k][c:d]
 
         accum_amv += n_amvs