diff --git a/test-data/snake_oil/snake_oil.ert b/test-data/snake_oil/snake_oil.ert
index 486b3d452d7..93b36dcae63 100644
--- a/test-data/snake_oil/snake_oil.ert
+++ b/test-data/snake_oil/snake_oil.ert
@@ -4,8 +4,8 @@ NUM_REALIZATIONS 25
 
 QUEUE_OPTION LOCAL MAX_RUNNING 25
 
-ANALYSIS_SET_VAR IES_ENKF IES_INVERSION 1
-ANALYSIS_SET_VAR STD_ENKF IES_INVERSION 1
+ANALYSIS_SET_VAR IES_ENKF INVERSION 1
+ANALYSIS_SET_VAR STD_ENKF INVERSION 1
 
 DEFINE <STORAGE> storage/<CONFIG_FILE_BASE>
 RANDOM_SEED 3593114179000630026631423308983283277868