diff --git a/src/components/shared/WindowTitle.js b/src/components/shared/WindowTitle.js
index b3acf781ff3..d4b1bb35b73 100644
--- a/src/components/shared/WindowTitle.js
+++ b/src/components/shared/WindowTitle.js
@@ -19,7 +19,7 @@ import type { ConnectedProps } from '../../utils/connect';
 
 type StateProps = {|
   +profile: Profile,
-  +profileName: string | null,
+  +profileName: string,
   +dataSource: string,
 |};
 
diff --git a/src/selectors/url-state.js b/src/selectors/url-state.js
index 57152e0f8c7..f5723f0631f 100644
--- a/src/selectors/url-state.js
+++ b/src/selectors/url-state.js
@@ -243,7 +243,7 @@ export const getPathInZipFileFromUrl: Selector<string | null> = state =>
 /**
  * For now only provide a name for a profile if it came from a zip file.
  */
-export const getProfileName: Selector<null | string> = createSelector(
+export const getProfileName: Selector<string> = createSelector(
   getProfileNameFromUrl,
   getPathInZipFileFromUrl,
   (profileName, pathInZipFile) => {