diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation.c b/src/libimcv/plugins/imv_attestation/imv_attestation.c
index 09ed64b05..45adfac47 100644
--- a/src/libimcv/plugins/imv_attestation/imv_attestation.c
+++ b/src/libimcv/plugins/imv_attestation/imv_attestation.c
@@ -106,7 +106,15 @@ TNC_Result TNC_IMV_Initialize(TNC_IMVID imv_id,
 		return TNC_RESULT_NO_COMMON_VERSION;
 	}
 
-	/* Specify supported PTS measurement algorithms */
+	/**
+	 * Specify supported PTS measurement algorithms
+	 *
+	 * sha1 :  PTS_MEAS_ALGO_SHA1
+	 * sha256: PTS_MEAS_ALGO_SHA1 | PTS_MEAS_ALGO_SHA256
+	 * sha384: PTS_MEAS_ALGO_SHA1 | PTS_MEAS_ALGO_SHA256 | PTS_MEAS_ALGO_SHA384
+	 *
+	 * we expect the PTS-IMC to select the strongest supported algorithm
+	 */
 	hash_alg = lib->settings->get_str(lib->settings,
 				"libimcv.plugins.imv-attestation.hash_algorithm", "sha256");
 	if (!strcaseeq(hash_alg, "sha384") && !strcaseeq(hash_alg, "sha2_384"))