diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index b9f899c552..7d2be56664 100644
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -1457,8 +1457,8 @@ connectOptions2(PGconn *conn)
 			case 'r':			/* "require" */
 			case 'v':			/* "verify-ca" or "verify-full" */
 				conn->status = CONNECTION_BAD;
-				libpq_append_conn_error(conn, "sslmode value \"%s\" invalid when SSL support is not compiled in",
-										conn->sslmode);
+				libpq_append_conn_error(conn, "%s value \"%s\" invalid when SSL support is not compiled in",
+										"sslmode", conn->sslmode);
 				return false;
 		}
 #endif