diff --git a/src/NodaUncertaintyHelper.php b/src/NodaUncertaintyHelper.php
index 12d7fab..67154ef 100644
--- a/src/NodaUncertaintyHelper.php
+++ b/src/NodaUncertaintyHelper.php
@@ -251,7 +251,7 @@ final class NodaUncertaintyHelper {
      */
     public static function trim(string $input):string {
 
-        return \trim($input, ", \t\n\r\n;-:");
+        return \trim($input, ", \t\n\r\n;:");
 
     }