diff --git a/ext/liquid/liquid_context.leg b/ext/liquid/liquid_context.leg
index 64067ab..b6b282d 100644
--- a/ext/liquid/liquid_context.leg
+++ b/ext/liquid/liquid_context.leg
@@ -67,7 +67,7 @@ numeric = float
         | integer
         ;
 
-float = <'-'? digit'.'digit+>     { $$ = rb_funcall(rb_cObject, rb_intern("Float"), 1, yy_rb_str); }
+float = <'-'? digit+'.'digit+>     { $$ = rb_funcall(rb_cObject, rb_intern("Float"), 1, yy_rb_str); }
 integer = <'-'? digit+>           { $$ = rb_funcall(rb_cObject, rb_intern("Integer"), 1, yy_rb_str); }
 
 
@@ -95,4 +95,4 @@ VALUE liquid_context_parse_impl(VALUE self, VALUE text) {
   yyparse(&ctx);
 
   return ctx.rb_tokens;
-}
\ No newline at end of file
+}