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-rw-r--r--mail/message-tag-editor.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mail/message-tag-editor.c b/mail/message-tag-editor.c
index 01934eaec9..13967bab0e 100644
--- a/mail/message-tag-editor.c
+++ b/mail/message-tag-editor.c
@@ -146,6 +146,7 @@ void
message_tag_editor_set_value (MessageTagEditor *editor, const char *value)
{
g_return_if_fail (IS_MESSAGE_TAG_EDITOR (editor));
+ g_return_if_fail (value != NULL);
((MessageTagEditorClass *)((GtkObject *) editor)->klass)->set_value (editor, value);
}