diff --git a/src/opm/input/eclipse/share/keywords/000_Eclipse100/K/KRNUM b/src/opm/input/eclipse/share/keywords/000_Eclipse100/K/KRNUM
index 9a5e162a9..872562a38 100644
--- a/src/opm/input/eclipse/share/keywords/000_Eclipse100/K/KRNUM
+++ b/src/opm/input/eclipse/share/keywords/000_Eclipse100/K/KRNUM
@@ -3,7 +3,7 @@
   "sections": [
     "REGIONS"
   ],
-  "deck_name": [
+  "deck_names": [
     "KRNUMX",
     "KRNUMX-",
     "KRNUMY",