diff --git a/configure b/configure
index 08519e64..a17006c4 100644
--- a/configure
+++ b/configure
@@ -13092,7 +13092,7 @@ EOF
 
 browser)
   MOZ_APP_NAME=rzbrowser
-  MOZ_APP_DISPLAYNAME=RetroZilla Browser
+  MOZ_APP_DISPLAYNAME="RetroZilla Browser"
   MOZ_XUL_APP=1
   MOZ_PHOENIX=1
   MOZ_SAFE_BROWSING=1
diff --git a/configure.in b/configure.in
index 577ec186..6afe2e0e 100644
--- a/configure.in
+++ b/configure.in
@@ -4324,7 +4324,7 @@ suite)
 
 browser)
   MOZ_APP_NAME=rzbrowser
-  MOZ_APP_DISPLAYNAME=RetroZilla Browser
+  MOZ_APP_DISPLAYNAME="RetroZilla Browser"
   MOZ_XUL_APP=1
   MOZ_PHOENIX=1
   MOZ_SAFE_BROWSING=1