diff --git a/src/ui/dialog/global-palettes.cpp b/src/ui/dialog/global-palettes.cpp
index ae529a703d390e21c6a1ee1dd26a309b9176974b..7e68a363bb4a99614e7a443c0e0724de7a909c09 100644
--- a/src/ui/dialog/global-palettes.cpp
+++ b/src/ui/dialog/global-palettes.cpp
@@ -451,7 +451,7 @@ PaletteResult load_palette(std::string const &path)
     } catch (Glib::Error const &e) {
         return {{}, compose_error(e.what())};
     } catch (...) {
-        return {{}, Glib::ustring::compose(_("Unknown error loading palette %"), utf8path)};
+        return {{}, Glib::ustring::compose(_("Unknown error loading palette %1"), utf8path)};
     }
 }