diff --git a/pathfinder-core/src/main/antlr/de/cubbossa/pathfinder/antlr/SelectionLanguage.g4 b/pathfinder-core/src/main/antlr/de/cubbossa/pathfinder/antlr/SelectionLanguage.g4
index d62074bd..54d16997 100644
--- a/pathfinder-core/src/main/antlr/de/cubbossa/pathfinder/antlr/SelectionLanguage.g4
+++ b/pathfinder-core/src/main/antlr/de/cubbossa/pathfinder/antlr/SelectionLanguage.g4
@@ -45,7 +45,7 @@ COND_DELIMIT: ',';
 COND_EQUALS: '=';
 
 QUOTE  : '"' ( ESC_SEQ | ~('\\'|'"') )* '"' ;
-IDENTIFIER: [a-zA-Z][a-zA-Z0-9_-]*;
+IDENTIFIER: [a-zA-Z0-9_:]+;
 STRING: (~[,=])+?;
 
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