diff --git a/qdev-monitor.c b/qdev-monitor.c
index a35098f711b7f1333f4a9de16935159f1926001c..30936dfba4508e03a9f75c6ca721ba4722c75eec 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -304,6 +304,7 @@ static void qbus_list_bus(DeviceState *dev, Error **errp)
         error_append_hint(errp, "%s\"%s\"", sep, child->name);
         sep = ", ";
     }
+    error_append_hint(errp, "\n");
 }
 
 static void qbus_list_dev(BusState *bus, Error **errp)
@@ -321,6 +322,7 @@ static void qbus_list_dev(BusState *bus, Error **errp)
         }
         sep = ", ";
     }
+    error_append_hint(errp, "\n");
 }
 
 static BusState *qbus_find_bus(DeviceState *dev, char *elem)
diff --git a/util/error.c b/util/error.c
index 80c89a20797527d21089efa293f7dc1ea7957539..9b27c4508e713cc0b8f708c2862c4625eee8eb97 100644
--- a/util/error.c
+++ b/util/error.c
@@ -204,7 +204,7 @@ void error_report_err(Error *err)
 {
     error_report("%s", error_get_pretty(err));
     if (err->hint) {
-        error_printf_unless_qmp("%s\n", err->hint->str);
+        error_printf_unless_qmp("%s", err->hint->str);
     }
     error_free(err);
 }
diff --git a/util/qemu-option.c b/util/qemu-option.c
index a50eceae4a632b35049f5a7cd099103ea0961c3f..a2d593ad2bcc6c7cd18cbd557f8de7b33bbfabce 100644
--- a/util/qemu-option.c
+++ b/util/qemu-option.c
@@ -206,7 +206,7 @@ void parse_option_size(const char *name, const char *value,
         default:
             error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name, "a size");
             error_append_hint(errp, "You may use k, M, G or T suffixes for "
-                    "kilobytes, megabytes, gigabytes and terabytes.");
+                    "kilobytes, megabytes, gigabytes and terabytes.\n");
             return;
         }
     } else {
@@ -647,7 +647,7 @@ QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id,
             error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "id",
                        "an identifier");
             error_append_hint(errp, "Identifiers consist of letters, digits, "
-                              "'-', '.', '_', starting with a letter.");
+                              "'-', '.', '_', starting with a letter.\n");
             return NULL;
         }
         opts = qemu_opts_find(list, id);