diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index e6488c09c..0081ca3d6 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -354,8 +354,8 @@
 #endif
 
 #if defined(MBEDTLS_LMS_C) &&                                          \
-    ! ( defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA256) )
-#error "MBEDTLS_LMS_C requires MBEDTLS_PSA_CRYPTO_C and PSA_WANT_ALG_SHA256"
+    ! ( defined(MBEDTLS_PSA_CRYPTO_C) && defined(PSA_WANT_ALG_SHA_256) )
+#error "MBEDTLS_LMS_C requires MBEDTLS_PSA_CRYPTO_C and PSA_WANT_ALG_SHA_256"
 #endif
 
 #if defined(MBEDTLS_LMS_PRIVATE) &&                                    \