diff --git a/ransack/parser.py b/ransack/parser.py
index aa58e273e651d83ca25069050b152da0dcb33503..fa23d78e4334d72fb87fed7636a1a2a02dad4e2e 100644
--- a/ransack/parser.py
+++ b/ransack/parser.py
@@ -103,7 +103,6 @@ class Parser:
         STRING: /"([^"]+)"|\'([^\']+)\'/
         VARIABLE: /\.?[_a-zA-Z][-_a-zA-Z0-9]*(?:\.?[a-zA-Z][-_a-zA-Z0-9]*)*/
         FUNCTION.2: /[_a-zA-Z][_a-zA-Z0-9]*\(/
-        NUMBER_RANGE.2: /(-?\d+(\.\d+)?)\s*(\.\.)\s*(-?\d+(\.\d+)?)/
 
         %import common.WS
         %ignore WS