diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index e10ca30..e5833ce 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -2463,6 +2463,7 @@
         goto error;
     }
 
+    mbedtls_zeroize( temp_output_buffer, sizeof( temp_output_buffer ) );
     status = psa_cipher_abort( operation );
 
     return( status );
@@ -2471,6 +2472,7 @@
 
     *output_length = 0;
 
+    mbedtls_zeroize( temp_output_buffer, sizeof( temp_output_buffer ) );
     (void) psa_cipher_abort( operation );
 
     return( status );