diff --git a/lib/logstorage/parser_test.go b/lib/logstorage/parser_test.go
index b7f52551a..32c621421 100644
--- a/lib/logstorage/parser_test.go
+++ b/lib/logstorage/parser_test.go
@@ -929,6 +929,7 @@ func TestParseQuerySuccess(t *testing.T) {
 	   count() if (is_admin:true or _msg:"foo bar"*) as foo,
 	   sum(duration) if (host:in('foo.com', 'bar.com') and path:/foobar) as bar`,
 		`* | stats by (_time:1d offset -2h, f2) count(*) if (is_admin:true or "foo bar"*) as foo, sum(duration) if (host:in(foo.com,bar.com) path:"/foobar") as bar`)
+	f(`* | stats count() if () rows`, `* | stats count(*) if () as rows`)
 
 	// sort pipe
 	f(`* | sort`, `* | sort`)
diff --git a/lib/logstorage/pipe_stats.go b/lib/logstorage/pipe_stats.go
index 0a19bb65b..fbcda809c 100644
--- a/lib/logstorage/pipe_stats.go
+++ b/lib/logstorage/pipe_stats.go
@@ -563,6 +563,10 @@ func parseIfFilter(lex *lexer) (filter, error) {
 		return nil, fmt.Errorf("unexpected token %q after 'if'; expecting '('", lex.token)
 	}
 	lex.nextToken()
+	if lex.isKeyword(")") {
+		lex.nextToken()
+		return &filterNoop{}, nil
+	}
 	f, err := parseFilter(lex)
 	if err != nil {
 		return nil, fmt.Errorf("cannot parse 'if' filter: %w", err)