diff --git a/completion.go b/completion.go
index 57e82ee..402f59a 100644
--- a/completion.go
+++ b/completion.go
@@ -188,3 +188,9 @@ func NewCompletionManager(completer Completer, max uint16) *CompletionManager {
 		verticalScroll: 0,
 	}
 }
+
+var _ Completer = NoopCompleter
+
+func NoopCompleter(_ Document) []Suggest {
+	return nil
+}
diff --git a/completion_test.go b/completion_test.go
index 0b66347..c17c1d9 100644
--- a/completion_test.go
+++ b/completion_test.go
@@ -204,3 +204,9 @@ func TestFormatText(t *testing.T) {
 		}
 	}
 }
+
+func TestNoopCompleter(t *testing.T) {
+	if NoopCompleter(Document{}) != nil {
+		t.Errorf("NoopCompleter should return nil")
+	}
+}