diff --git a/wolfssl/wolfcrypt/settings.h b/wolfssl/wolfcrypt/settings.h
index 88e2637fb..37bbcdb3c 100644
--- a/wolfssl/wolfcrypt/settings.h
+++ b/wolfssl/wolfcrypt/settings.h
@@ -402,25 +402,27 @@
 #if defined(NO_ESP32WROOM32_CRYPT)
     #undef NO_ESP32WROOM32_CRYPT
     #define NO_ESP32_CRYPT
-    #warning "Please use NO_ESP32_CRYPT not NO_ESP32WROOM32_CRYPT"
+    #error "Please use NO_ESP32_CRYPT not NO_ESP32WROOM32_CRYPT"
 #endif
 
 #if defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH)
     #undef NO_WOLFSSL_ESP32WROOM32_CRYPT_HASH
     #define NO_WOLFSSL_ESP32_CRYPT_HASH
-    #warning "Please use NO_WOLFSSL_ESP32_CRYPT_HASH not NO_ESP32WROOM32_CRYPT"
+    #error "Please use NO_WOLFSSL_ESP32_CRYPT_HASH not NO_ESP32WROOM32_CRYPT"
 #endif
 
 #if defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_AES)
     #undef NO_WOLFSSL_ESP32WROOM32_CRYPT_AES
     #define NO_WOLFSSL_ESP32_CRYPT_AES
-    #warning "Please use NO_WOLFSSL_ESP32_CRYPT_AES not NO_WOLFSSL_ESP32WROOM32_CRYPT_AES"
+    #error "Please use NO_WOLFSSL_ESP32_CRYPT_AES" \
+           " not " "NO_WOLFSSL_ESP32WROOM32_CRYPT_AES"
 #endif
 
 #if defined(NO_WOLFSSL_ESP32WROOM32_CRYPT_RSA_PRI)
     #undef NO_WOLFSSL_ESP32WROOM32_CRYPT_RSA_PRI
     #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI
-    #warning "Please use NO_WOLFSSL_ESP32_CRYPT_RSA_PRI not NO_WOLFSSL_ESP32WROOM32_CRYPT_RSA_PRI"
+    #error "Please use NO_WOLFSSL_ESP32_CRYPT_RSA_PRI" \
+           " not " "NO_WOLFSSL_ESP32WROOM32_CRYPT_RSA_PRI"
 #endif
 
 #if defined(WOLFSSL_ESP32) || defined(WOLFSSL_ESPWROOM32SE)