diff --git a/boot/bootutil/src/ed25519_psa.c b/boot/bootutil/src/ed25519_psa.c
index c7e3910b1..541fc0155 100644
--- a/boot/bootutil/src/ed25519_psa.c
+++ b/boot/bootutil/src/ed25519_psa.c
@@ -187,6 +187,7 @@ int exec_revoke(void)
 }
 #endif /* CONFIG_BOOT_KMU_KEYS_REVOCATION */
 
+#if defined(CONFIG_BOOT_SIGNATURE_USING_KMU)
 void nrf_crypto_keys_housekeeping(void)
 {
     psa_status_t status;
@@ -212,5 +213,6 @@ void nrf_crypto_keys_housekeeping(void)
                      key_ids[i], i, status);
     }
 }
+#endif
 
 #endif