diff --git a/ambar-core/src/maybe.ts b/ambar-core/src/maybe.ts
index 2e5a9e3..1feba96 100644
--- a/ambar-core/src/maybe.ts
+++ b/ambar-core/src/maybe.ts
@@ -21,6 +21,7 @@ export {
   CallableJust as Just,
   CallableNothing as Nothing,
   from,
+  fromNullable,
   catMaybes,
   mapMaybe,
 };
@@ -99,6 +100,14 @@ function from<T>(v: undefined | T): Maybe<T> {
   }
 }
 
+function fromNullable<T>(v: NonNullable<T> | null): Maybe<T> {
+  if (v === null) {
+    return new Nothing();
+  } else {
+    return new Just(v);
+  }
+}
+
 // Remove Nothings from an array.
 function catMaybes<T>(xs: Array<Maybe<T>>): Array<T> {
   const r: Array<T> = [];