1 files changed, 6 insertions, 2 deletions
diff --git a/src/ui.c b/src/ui.c
index e3a9b2b..8a2858f 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -14,12 +14,16 @@
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
+#include "lilv_internal.h"
+
+#include "lilv/lilv.h"
+#include "zix/tree.h"
+
 #include <assert.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "lilv_internal.h"
-
 LilvUI*
 lilv_ui_new(LilvWorld* world,
             LilvNode* uri,