diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index 7ec7bc8e0..dc2e2732e 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -550,4 +550,5 @@
     <string name="error_creating_directory_for_logfiles">Błąd tworzenia folderu na pliki log: %1$s</string>
     <string name="DEVINFO_HR_VER">"Puls: "</string>
     <string name="filter_mode_whitelist">Pokazuj gdy zawiera słowa</string>
+    <string name="pref_chart_heartrate_color_red">Czerwony</string>
 </resources>
\ No newline at end of file