diff --git a/src/opm/input/eclipse/share/keywords/000_Eclipse100/W/WDFACCOR b/src/opm/input/eclipse/share/keywords/000_Eclipse100/W/WDFACCOR
index 4f63ca107..9bafde8a1 100644
--- a/src/opm/input/eclipse/share/keywords/000_Eclipse100/W/WDFACCOR
+++ b/src/opm/input/eclipse/share/keywords/000_Eclipse100/W/WDFACCOR
@@ -12,7 +12,7 @@
       "name": "A",
       "value_type": "DOUBLE",
       "default": 0,
-      "dimension": "Viscosity*Time/Permeability*GasSurfaceVolume"
+      "dimension": "Viscosity*Time*Area/Permeability*GasSurfaceVolume"
     },
     {
       "name": "B",