diff --git a/Userland/Libraries/LibJS/Runtime/ArrayBuffer.h b/Userland/Libraries/LibJS/Runtime/ArrayBuffer.h
index af6044f7b4..ec438d319e 100644
--- a/Userland/Libraries/LibJS/Runtime/ArrayBuffer.h
+++ b/Userland/Libraries/LibJS/Runtime/ArrayBuffer.h
@@ -182,7 +182,7 @@ static ByteBuffer numeric_to_raw_bytes(GlobalObject& global_object, Value value,
             else if constexpr (!IsSame<T, ClampedU8>)
                 int_value = MUST(value.to_u8(global_object));
             else
-                int_value = value.to_u8_clamp(global_object);
+                int_value = MUST(value.to_u8_clamp(global_object));
         }
         ReadonlyBytes { &int_value, sizeof(UnderlyingBufferDataType) }.copy_to(raw_bytes);
         if constexpr (sizeof(UnderlyingBufferDataType) % 2 == 0)
diff --git a/Userland/Libraries/LibJS/Runtime/Value.cpp b/Userland/Libraries/LibJS/Runtime/Value.cpp
index 3738464b4e..d16ac860e6 100644
--- a/Userland/Libraries/LibJS/Runtime/Value.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Value.cpp
@@ -671,9 +671,9 @@ ThrowCompletionOr<u8> Value::to_u8(GlobalObject& global_object) const
 }
 
 // 7.1.12 ToUint8Clamp ( argument ), https://tc39.es/ecma262/#sec-touint8clamp
-u8 Value::to_u8_clamp(GlobalObject& global_object) const
+ThrowCompletionOr<u8> Value::to_u8_clamp(GlobalObject& global_object) const
 {
-    auto number = TRY_OR_DISCARD(to_number(global_object));
+    auto number = TRY(to_number(global_object));
     if (number.is_nan())
         return 0;
     double value = number.as_double();
diff --git a/Userland/Libraries/LibJS/Runtime/Value.h b/Userland/Libraries/LibJS/Runtime/Value.h
index 8bd7bfad55..7696fcbc60 100644
--- a/Userland/Libraries/LibJS/Runtime/Value.h
+++ b/Userland/Libraries/LibJS/Runtime/Value.h
@@ -321,7 +321,7 @@ public:
     ThrowCompletionOr<u16> to_u16(GlobalObject&) const;
     ThrowCompletionOr<i8> to_i8(GlobalObject&) const;
     ThrowCompletionOr<u8> to_u8(GlobalObject&) const;
-    u8 to_u8_clamp(GlobalObject&) const;
+    ThrowCompletionOr<u8> to_u8_clamp(GlobalObject&) const;
     size_t to_length(GlobalObject&) const;
     size_t to_index(GlobalObject&) const;
     double to_integer_or_infinity(GlobalObject&) const;