diff --git a/ChangeLog.d/pk-norsa-warning.txt b/ChangeLog.d/pk-norsa-warning.txt
new file mode 100644
index 0000000000..d00aa8a870
--- /dev/null
+++ b/ChangeLog.d/pk-norsa-warning.txt
@@ -0,0 +1,2 @@
+Bugfix
+   * Fix a compilation warning in pk.c when PSA is enabled and RSA is disabled.
diff --git a/library/pk.c b/library/pk.c
index e33a2434b9..3fe51ea34f 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -868,7 +868,6 @@ static int copy_from_psa(mbedtls_svc_key_id_t key_id,
     psa_status_t status;
     psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
     psa_key_type_t key_type;
-    psa_algorithm_t alg_type;
     size_t key_bits;
     /* Use a buffer size large enough to contain either a key pair or public key. */
     unsigned char exp_key[PSA_EXPORT_KEY_PAIR_OR_PUBLIC_MAX_SIZE];
@@ -899,7 +898,6 @@ static int copy_from_psa(mbedtls_svc_key_id_t key_id,
         key_type = PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(key_type);
     }
     key_bits = psa_get_key_bits(&key_attr);
-    alg_type = psa_get_key_algorithm(&key_attr);
 
 #if defined(MBEDTLS_RSA_C)
     if ((key_type == PSA_KEY_TYPE_RSA_KEY_PAIR) ||
@@ -919,6 +917,7 @@ static int copy_from_psa(mbedtls_svc_key_id_t key_id,
             goto exit;
         }
 
+        psa_algorithm_t alg_type = psa_get_key_algorithm(&key_attr);
         mbedtls_md_type_t md_type = MBEDTLS_MD_NONE;
         if (PSA_ALG_GET_HASH(alg_type) != PSA_ALG_ANY_HASH) {
             md_type = mbedtls_md_type_from_psa_alg(alg_type);