1 files changed, 4 insertions, 0 deletions

diff --git a/gtree.c b/gtree.c
index aeeb467dd..39c1668ee 100644
--- a/gtree.c
+++ b/gtree.c
@@ -28,6 +28,10 @@
  * MT safe
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include "glib.h"