diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 9c5dae94a9..6bb19602d3 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -2475,7 +2475,7 @@ void cipher_encrypt_multipart( int alg_arg, int key_type_arg,
                            PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
     ASSERT_ALLOC( output, output_buffer_size );
 
-    TEST_ASSERT( (unsigned int) first_part_size < input->len );
+    TEST_ASSERT( (unsigned int) first_part_size <= input->len );
     PSA_ASSERT( psa_cipher_update( &operation, input->x, first_part_size,
                                    output, output_buffer_size,
                                    &function_output_length ) );
@@ -2546,7 +2546,7 @@ void cipher_decrypt_multipart( int alg_arg, int key_type_arg,
                            PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
     ASSERT_ALLOC( output, output_buffer_size );
 
-    TEST_ASSERT( (unsigned int) first_part_size < input->len );
+    TEST_ASSERT( (unsigned int) first_part_size <= input->len );
     PSA_ASSERT( psa_cipher_update( &operation,
                                    input->x, first_part_size,
                                    output, output_buffer_size,
@@ -2772,7 +2772,7 @@ void cipher_verify_output_multipart( int alg_arg,
                             PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) );
     ASSERT_ALLOC( output1, output1_buffer_size );
 
-    TEST_ASSERT( (unsigned int) first_part_size < input->len );
+    TEST_ASSERT( (unsigned int) first_part_size <= input->len );
 
     PSA_ASSERT( psa_cipher_update( &operation1, input->x, first_part_size,
                                    output1, output1_buffer_size,