diff --git a/unix/main.c b/unix/main.c
index 1ab14138..18985887 100644
--- a/unix/main.c
+++ b/unix/main.c
@@ -52,3 +52,10 @@ void uiQueueMain(void (*f)(void *data), void *data)
 	q->data = data;
 	gdk_threads_add_idle(doqueued, q);
 }
+
+void uiprivReportError(const char *prefix, const char *msg, const char *suffix, bool internal)
+{
+	g_critical("%s: %s. %s", prefix, msg, suffix);
+	G_BREAKPOINT();
+	abort();		// we shouldn't reach here
+}
diff --git a/unix/uipriv_unix.h b/unix/uipriv_unix.h
index 3cc56d0a..0d77ddab 100644
--- a/unix/uipriv_unix.h
+++ b/unix/uipriv_unix.h
@@ -1,4 +1,5 @@
 // 22 april 2015
+#define G_LOG_DOMAIN "libui"
 #define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_40
 #define GLIB_VERSION_MAX_ALLOWED GLIB_VERSION_2_40
 #define GDK_VERSION_MIN_REQUIRED GDK_VERSION_3_10