diff --git a/proto/backend.proto b/proto/backend.proto
index 26a171517..c61e58f6d 100644
--- a/proto/backend.proto
+++ b/proto/backend.proto
@@ -22,6 +22,7 @@ enum StringsGroup {
     STATISTICS = 6;
     FILTERING = 7;
     SCHEDULING = 8;
+    DECK_CONFIG = 9;
 }
 
 // 1-15 reserved for future use; 2047 for errors
diff --git a/rslib/src/i18n/deck-config.ftl b/rslib/src/i18n/deck-config.ftl
new file mode 100644
index 000000000..cda10b1a8
--- /dev/null
+++ b/rslib/src/i18n/deck-config.ftl
@@ -0,0 +1,7 @@
+# Used in the deck configuration screen to show how many decks are used
+# by a particular configuration group, eg "Group1 (used by 3 decks)"
+used-by-decks = used by { $decks ->
+   [one]   1 deck
+  *[other] {$decks} decks
+  }
+
diff --git a/rslib/src/i18n/mod.rs b/rslib/src/i18n/mod.rs
index d31d183fe..ad17c2dee 100644
--- a/rslib/src/i18n/mod.rs
+++ b/rslib/src/i18n/mod.rs
@@ -62,6 +62,7 @@ fn ftl_fallback_for_group(group: StringsGroup) -> String {
         StringsGroup::Statistics => include_str!("statistics.ftl"),
         StringsGroup::Filtering => include_str!("filtering.ftl"),
         StringsGroup::Scheduling => include_str!("scheduling.ftl"),
+        StringsGroup::DeckConfig => include_str!("deck-config.ftl"),
     }
     .to_string()
 }
@@ -79,6 +80,7 @@ fn localized_ftl_for_group(group: StringsGroup, lang_ftl_folder: &Path) -> Optio
         StringsGroup::Statistics => "statistics.ftl",
         StringsGroup::Filtering => "filtering.ftl",
         StringsGroup::Scheduling => "scheduling.ftl",
+        StringsGroup::DeckConfig => "deck-config.ftl",
     });
     fs::read_to_string(&path)
         .map_err(|e| {