diff --git a/src/common/hmac.c b/src/common/hmac.c
index bfe2e7cb5e9..1af7276ddcb 100644
--- a/src/common/hmac.c
+++ b/src/common/hmac.c
@@ -38,9 +38,7 @@
 #define FREE(ptr) free(ptr)
 #endif
 
-/*
- * Internal structure for pg_hmac_ctx->data with this implementation.
- */
+/* Internal pg_hmac_ctx structure */
 struct pg_hmac_ctx
 {
 	pg_cryptohash_ctx *hash;
diff --git a/src/common/hmac_openssl.c b/src/common/hmac_openssl.c
index 1acf59476eb..95b494400ab 100644
--- a/src/common/hmac_openssl.c
+++ b/src/common/hmac_openssl.c
@@ -50,9 +50,7 @@
 #define FREE(ptr) free(ptr)
 #endif							/* FRONTEND */
 
-/*
- * Internal structure for pg_hmac_ctx->data with this implementation.
- */
+/* Internal pg_hmac_ctx structure */
 struct pg_hmac_ctx
 {
 	HMAC_CTX   *hmacctx;