diff --git a/library/error.c b/library/error.c
index 96ab203..3705825 100644
--- a/library/error.c
+++ b/library/error.c
@@ -572,6 +572,8 @@
         mbedtls_snprintf( buf, buflen, "AES - Invalid key length" );
     if( use_ret == -(MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH) )
         mbedtls_snprintf( buf, buflen, "AES - Invalid data input length" );
+    if( use_ret == -(MBEDTLS_ERR_AES_BAD_INPUT_DATA) )
+        mbedtls_snprintf( buf, buflen, "AES - Invalid input data" );
     if( use_ret == -(MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE) )
         mbedtls_snprintf( buf, buflen, "AES - Feature not available. For example, an unsupported AES key size" );
     if( use_ret == -(MBEDTLS_ERR_AES_HW_ACCEL_FAILED) )