diff --git a/src/backend/access/transam/slru.c b/src/backend/access/transam/slru.c
index 47dd52d6749..885fd068535 100644
--- a/src/backend/access/transam/slru.c
+++ b/src/backend/access/transam/slru.c
@@ -1135,12 +1135,12 @@ SlruReportIOError(SlruDesc *ctl, int64 pageno, const void *opaque_data)
 			if (errno)
 				ereport(ERROR,
 						(errcode_for_file_access(),
-						 errmsg("Could not write to file \"%s\" at offset %d: %m",
+						 errmsg("could not write to file \"%s\" at offset %d: %m",
 								path, offset),
 						 opaque_data ? ctl->options.errdetail_for_io_error(opaque_data) : 0));
 			else
 				ereport(ERROR,
-						(errmsg("Could not write to file \"%s\" at offset %d: wrote too few bytes.",
+						(errmsg("could not write to file \"%s\" at offset %d: wrote too few bytes",
 								path, offset),
 						 opaque_data ? ctl->options.errdetail_for_io_error(opaque_data) : 0));
 			break;
diff --git a/src/backend/libpq/be-secure-openssl.c b/src/backend/libpq/be-secure-openssl.c
index 675bf2de5b2..b7ded8a0250 100644
--- a/src/backend/libpq/be-secure-openssl.c
+++ b/src/backend/libpq/be-secure-openssl.c
@@ -366,7 +366,7 @@ be_tls_init(bool isServerStart)
 				errcode(ERRCODE_CONFIG_FILE_ERROR),
 				errmsg("no SSL configurations loaded"),
 		/*- translator: The two %s contain filenames */
-				errhint("If ssl_sni is enabled then add configuration to \"%s\", else \"%s\"",
+				errhint("If ssl_sni is enabled then add configuration to \"%s\", else \"%s\".",
 						HostsFileName, "postgresql.conf"));
 		goto error;
 	}