diff --git a/lib/token.cpp b/lib/token.cpp
index be0d20cf6..effae9144 100644
--- a/lib/token.cpp
+++ b/lib/token.cpp
@@ -446,7 +446,7 @@ static int multiComparePercent(const Token *tok, const char*& haystack, bool emp
     break;
     default:
         //unknown %cmd%, abort
-        std::abort();
+        throw InternalError( tok, "Unexpected command" );
     }
 
     if (*haystack == '|')