diff --git a/modules/programs/foliate.nix b/modules/programs/foliate.nix
index 5426fc69c..35d5a7eae 100644
--- a/modules/programs/foliate.nix
+++ b/modules/programs/foliate.nix
@@ -41,7 +41,7 @@ in
               show-covers = true;
             };
             "viewer/view" = {
-              theme = "My Theme";
+              theme = "myTheme.json";
             };
             "viewer/font" = {
               monospace = "Maple Mono";
diff --git a/tests/modules/programs/foliate/basic-theme.nix b/tests/modules/programs/foliate/basic-theme.nix
index dd564b976..265f527b1 100644
--- a/tests/modules/programs/foliate/basic-theme.nix
+++ b/tests/modules/programs/foliate/basic-theme.nix
@@ -9,7 +9,7 @@
         show-covers = true;
       };
       "viewer/view" = {
-        theme = "My Theme";
+        theme = "myTheme.json";
       };
       "viewer/font" = {
         monospace = "Maple Mono";