diff --git a/src/opm/parser/eclipse/share/keywords/000_Eclipse100/H/HMMULTSG b/src/opm/parser/eclipse/share/keywords/000_Eclipse100/H/HMMULTSG
new file mode 100644
index 000000000..bfe97392c
--- /dev/null
+++ b/src/opm/parser/eclipse/share/keywords/000_Eclipse100/H/HMMULTSG
@@ -0,0 +1,10 @@
+{
+ "name": "HMMULTSG",
+  "sections": [
+    "GRID"
+  ],
+  "data": {
+    "value_type": "DOUBLE",
+    "dimension": "1"
+  }
+}
\ No newline at end of file