diff --git a/fuzz/fuzz_targets/fuzz_expr.rs b/fuzz/fuzz_targets/fuzz_expr.rs
index ce5535b16e..9f2d28603a 100644
--- a/fuzz/fuzz_targets/fuzz_expr.rs
+++ b/fuzz/fuzz_targets/fuzz_expr.rs
@@ -21,7 +21,9 @@ static CMD_PATH: &str = "expr";
 
 fn generate_expr(max_depth: u32) -> String {
     let mut rng = rand::thread_rng();
-    let ops = ["+", "-", "*", "/", "%", "<", ">", "=", "&", "|"];
+    let ops = [
+        "+", "-", "*", "/", "%", "<", ">", "=", "&", "|", "!=", "<=", ">=", ":", "index", "length", "substr",
+    ];
 
     let mut expr = String::new();
     let mut depth = 0;