1 files changed, 1 insertions, 0 deletions
diff --git a/searchlib/src/main/javacc/RankingExpressionParser.jj b/searchlib/src/main/javacc/RankingExpressionParser.jj
index fdad824cd1b..83496c7c5f1 100755
--- a/searchlib/src/main/javacc/RankingExpressionParser.jj
+++ b/searchlib/src/main/javacc/RankingExpressionParser.jj
@@ -794,6 +794,7 @@ String tag() :
 }
 {
     name = identifier() { return name; } |
+    <SUB> <INTEGER> { return "-" + token.image; } |
     <INTEGER> { return token.image; }
 }