diff --git a/src/interfaces/libpq/fe-secure-openssl.c b/src/interfaces/libpq/fe-secure-openssl.c
index d3bf57b850a..0cba5c5cf2f 100644
--- a/src/interfaces/libpq/fe-secure-openssl.c
+++ b/src/interfaces/libpq/fe-secure-openssl.c
@@ -1250,7 +1250,7 @@ initialize_SSL(PGconn *conn)
 		if (!S_ISREG(buf.st_mode))
 		{
 			appendPQExpBuffer(&conn->errorMessage,
-							  libpq_gettext("private key file \"%s\" is not a regular file"),
+							  libpq_gettext("private key file \"%s\" is not a regular file\n"),
 							  fnbuf);
 			return -1;
 		}