diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index fd979db..1ebb706 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -609,6 +609,11 @@
 #error "MBEDTLS_PSA_ITS_FILE_C defined, but not all prerequisites"
 #endif
 
+#if defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER) && \
+    defined(MBEDTLS_USE_PSA_CRYPTO)
+#error "MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER defined, but it cannot coexist with MBEDTLS_USE_PSA_CRYPTO."
+#endif
+
 #if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) ||         \
     !defined(MBEDTLS_OID_C) )
 #error "MBEDTLS_RSA_C defined, but not all prerequisites"
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 2ac2cc6..c930a8f 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1266,7 +1266,7 @@
  * which is currently hard-coded to be int32_t.
  *
  * Note that this option is meant for internal use only and may be removed
- * without notice.
+ * without notice. It is incompatible with PSA_USE_PSA_CRYPTO.
  */
 //#define MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
 
diff --git a/scripts/config.py b/scripts/config.py
index 6c29981..ae0614a 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -185,6 +185,7 @@
     'MBEDTLS_PKCS11_C', # build dependency (libpkcs11-helper)
     'MBEDTLS_PLATFORM_NO_STD_FUNCTIONS', # removes a feature
     'MBEDTLS_PSA_CRYPTO_CONFIG', # toggles old/new style PSA config
+    'MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER', # incompatible with USE_PSA_CRYPTO
     'MBEDTLS_PSA_CRYPTO_SPM', # platform dependency (PSA SPM)
     'MBEDTLS_PSA_INJECT_ENTROPY', # build dependency (hook functions)
     'MBEDTLS_REMOVE_3DES_CIPHERSUITES', # removes a feature
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 757a9ec..3c27617 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -780,6 +780,18 @@
     if_build_succeeded tests/context-info.sh
 }
 
+component_test_psa_crypto_key_id_encodes_owner () {
+    msg "build: full config - USE_PSA_CRYPTO + PSA_CRYPTO_KEY_ID_ENCODES_OWNER, cmake, gcc, ASan"
+    scripts/config.py full
+    scripts/config.py unset MBEDTLS_USE_PSA_CRYPTO
+    scripts/config.py set MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
+
+    msg "test: full config - USE_PSA_CRYPTO + PSA_CRYPTO_KEY_ID_ENCODES_OWNER, cmake, gcc, ASan"
+    make test
+}
+
 component_test_zlib_make() {
     msg "build: zlib enabled, make"
     scripts/config.py set MBEDTLS_ZLIB_SUPPORT