1 files changed, 1 insertions, 0 deletions
diff --git a/src/c/urweb.c b/src/c/urweb.c
index dad15568..509ba10d 100644
--- a/src/c/urweb.c
+++ b/src/c/urweb.c
@@ -21,6 +21,7 @@
 #include <pthread.h>
 
 #include <unicode/uchar.h>
+#include <unicode/ustring.h>
 
 #include "types.h"