diff --git a/library/psa_crypto_aead.c b/library/psa_crypto_aead.c
index 29dbede..37a4545 100644
--- a/library/psa_crypto_aead.c
+++ b/library/psa_crypto_aead.c
@@ -42,6 +42,7 @@
     mbedtls_psa_aead_operation_t *operation,
     const psa_key_attributes_t *attributes,
     const uint8_t *key_buffer,
+    size_t key_buffer_size,
     psa_algorithm_t alg )
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
@@ -50,6 +51,8 @@
     mbedtls_cipher_id_t cipher_id;
     size_t full_tag_length = 0;
 
+    ( void ) key_buffer_size;
+
     key_bits = attributes->core.bits;
 
     cipher_info = mbedtls_cipher_info_from_psa( alg,
@@ -145,9 +148,10 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     mbedtls_psa_aead_operation_t operation = MBEDTLS_PSA_AEAD_OPERATION_INIT;
     uint8_t *tag;
-    (void) key_buffer_size;
 
-    status = psa_aead_setup( &operation, attributes, key_buffer, alg );
+    status = psa_aead_setup( &operation, attributes, key_buffer,
+                             key_buffer_size, alg );
+
     if( status != PSA_SUCCESS )
         goto exit;
 
@@ -255,9 +259,10 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     mbedtls_psa_aead_operation_t operation = MBEDTLS_PSA_AEAD_OPERATION_INIT;
     const uint8_t *tag = NULL;
-    (void) key_buffer_size;
 
-    status = psa_aead_setup( &operation, attributes, key_buffer, alg );
+    status = psa_aead_setup( &operation, attributes, key_buffer,
+                             key_buffer_size, alg );
+
     if( status != PSA_SUCCESS )
         goto exit;
 
@@ -342,9 +347,8 @@
 {
     psa_status_t status;
 
-    (void) key_buffer_size;
-
-    status = psa_aead_setup( operation, attributes, key_buffer, alg );
+    status = psa_aead_setup( operation, attributes, key_buffer,
+                             key_buffer_size, alg );
 
     if( status == PSA_SUCCESS )
     {
@@ -368,7 +372,8 @@
 
     (void) key_buffer_size;
 
-    status = psa_aead_setup( operation, attributes, key_buffer, alg );
+    status = psa_aead_setup( operation, attributes, key_buffer,
+                             key_buffer_size, alg );
 
     if( status == PSA_SUCCESS )
     {
@@ -448,8 +453,8 @@
     if( operation->alg == PSA_ALG_GCM )
     {
         /* Lengths can only be too large for GCM if size_t is bigger than 32
-         * bits. Without the guard this code will generate warnings on 32bit
-           builds */
+         * bits. Without th
+           e guard this code will generate warnings on 32bit builds*/
 #if SIZE_MAX > UINT32_MAX
         if( ( (uint64_t) ad_length ) >> 61 != 0 ||
             ( (uint64_t) plaintext_length ) > 0xFFFFFFFE0ull )