diff --git a/src/concolic/concolic_wasm_ffi.ml b/src/concolic/concolic_wasm_ffi.ml
index b5db968b3..1101e7886 100644
--- a/src/concolic/concolic_wasm_ffi.ml
+++ b/src/concolic/concolic_wasm_ffi.ml
@@ -41,18 +41,7 @@ module M :
         in
         (I32 n, Value.pair n sym_expr) )
 
-  let symbol_char () : Value.int32 Choice.t =
-    Choice.with_new_symbol (Ty_bitv 32) (fun sym forced_value ->
-        let n =
-          match forced_value with
-          | None -> Int32.logand 0xFFl (Random.bits32 ())
-          | Some (Num (I32 n)) -> n
-          | _ -> assert false
-        in
-        let sym_expr =
-          Expr.make (Cvtop (Ty_bitv 32, Zero_extend 24, Expr.mk_symbol sym))
-        in
-        (I32 n, Value.pair n sym_expr) )
+  let symbol_char = symbol_i8
 
   let symbol_i64 () : Value.int64 Choice.t =
     Choice.with_new_symbol (Ty_bitv 64) (fun sym forced_value ->
diff --git a/src/symbolic/symbolic_wasm_ffi.ml b/src/symbolic/symbolic_wasm_ffi.ml
index 75500ec8c..901c70573 100644
--- a/src/symbolic/symbolic_wasm_ffi.ml
+++ b/src/symbolic/symbolic_wasm_ffi.ml
@@ -35,9 +35,7 @@ module M :
     Choice.with_new_symbol (Ty_bitv 8) (fun sym ->
         Expr.make (Cvtop (Ty_bitv 32, Zero_extend 24, Expr.symbol sym)) )
 
-  let symbol_char () =
-    Choice.with_new_symbol (Ty_bitv 8) (fun sym ->
-        Expr.make (Cvtop (Ty_bitv 32, Zero_extend 24, Expr.symbol sym)) )
+  let symbol_char = symbol_i8
 
   let symbol_i32 () = Choice.with_new_symbol (Ty_bitv 32) Expr.symbol