diff --git a/include/psa/crypto_platform.h b/include/psa/crypto_platform.h
index 17ebd70e7b..8acf22c7f3 100644
--- a/include/psa/crypto_platform.h
+++ b/include/psa/crypto_platform.h
@@ -82,7 +82,7 @@ static inline int mbedtls_key_owner_id_equal( mbedtls_key_owner_id_t id1,
 #endif /* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER */
 
 #if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
-/** The type of contexts passed to mbedtls_psa_external_get_random().
+/** The type of the context passed to mbedtls_psa_external_get_random().
  *
  * Mbed TLS initializes the context to all-bits-zero before calling
  * mbedtls_psa_external_get_random() for the first time.
diff --git a/library/psa_crypto_random_impl.h b/library/psa_crypto_random_impl.h
index 8c745dae26..07e1d10311 100644
--- a/library/psa_crypto_random_impl.h
+++ b/library/psa_crypto_random_impl.h
@@ -167,7 +167,7 @@ extern mbedtls_psa_drbg_context_t *const mbedtls_psa_random_state;
 
 /** A pointer to the PSA DRBG state.
  *
- * This macro expnds to an expression that is suitable as the \c p_rng
+ * This macro expands to an expression that is suitable as the \c p_rng
  * parameter to pass to mbedtls_psa_get_random().
  *
  * This macro exists in all configurations where the psa_crypto module is