diff --git a/src/lang/urdu.txt b/src/lang/urdu.txt
--- a/src/lang/urdu.txt
+++ b/src/lang/urdu.txt
@@ -1989,6 +1989,8 @@ STR_TRANSPARENT_INVISIBLE_TOOLTIP                               :{BLACK}چیزوں کو شفاف کی بجائے غائب کر دیں
 
 # Linkgraph legend window and linkgraph legend in smallmap
 
+# Linkgraph tooltip
+
 # Base for station construction window(s)
 STR_STATION_BUILD_COVERAGE_AREA_TITLE                           :{BLACK}کوریج والے علاقے کو واضح کریں
 STR_STATION_BUILD_COVERAGE_OFF                                  :{BLACK}بند