diff --git a/style/erfamap.css b/style/erfamap.css
index 077543b..2520e6a 100644
--- a/style/erfamap.css
+++ b/style/erfamap.css
@@ -53,6 +53,7 @@ text.erfalabel {
     font-family: concertone;
     font-size: 45px;
     z-index: 100;
+    user-select: none;
 }
 
 rect.debugleft {