diff --git a/src/lang/danish.txt b/src/lang/danish.txt
--- a/src/lang/danish.txt
+++ b/src/lang/danish.txt
@@ -2609,6 +2609,8 @@ STR_LINKGRAPH_LEGEND_UNUSED             
 STR_LINKGRAPH_LEGEND_SATURATED                                  :{TINY_FONT}{BLACK}mættet
 STR_LINKGRAPH_LEGEND_OVERLOADED                                 :{TINY_FONT}{BLACK}overbelastet
 
+# Linkgraph tooltip
+
 # Base for station construction window(s)
 STR_STATION_BUILD_COVERAGE_AREA_TITLE                           :{BLACK}Vis dækningsområde
 STR_STATION_BUILD_COVERAGE_OFF                                  :{BLACK}Fra