diff --git a/wolfcrypt/src/wc_pkcs11.c b/wolfcrypt/src/wc_pkcs11.c
index 569bc5cb34..1d5e1c40b0 100644
--- a/wolfcrypt/src/wc_pkcs11.c
+++ b/wolfcrypt/src/wc_pkcs11.c
@@ -6304,6 +6304,7 @@ static int Pkcs11GetCert(Pkcs11Session* session, wc_CryptoInfo* info) {
  * @param  [in]  info   Cryptographic operation data.
  * @param  [in]  ctx    Context data for device - the token object.
  * @return  WC_HW_E when a PKCS#11 library call fails.
+ * @return  NOT_COMPILED_IN when an unsupported operation is requested.
  * @return  0 on success.
  */
 int wc_Pkcs11_CryptoDevCb(int devId, wc_CryptoInfo* info, void* ctx)
@@ -6525,6 +6526,9 @@ int wc_Pkcs11_CryptoDevCb(int devId, wc_CryptoInfo* info, void* ctx)
                     }
                     break;
         #endif
+                default:
+                    ret = NOT_COMPILED_IN;
+                    break;
                 }
     #else
             ret = NOT_COMPILED_IN;