diff --git a/src/libstrongswan/plugins/wolfssl/wolfssl_aead.c b/src/libstrongswan/plugins/wolfssl/wolfssl_aead.c
index 44f054916..4c9e8d74d 100644
--- a/src/libstrongswan/plugins/wolfssl/wolfssl_aead.c
+++ b/src/libstrongswan/plugins/wolfssl/wolfssl_aead.c
@@ -236,7 +236,10 @@ METHOD(aead_t, decrypt, bool,
 		default:
 			break;
 	}
-
+	if (!success && plain)
+	{
+		chunk_free(plain);
+	}
 	memwipe(nonce.ptr, nonce.len);
 	return success;
 }