1 files changed, 1 insertions, 0 deletions

diff --git a/pattern.h b/pattern.h
index 16b9654..7569849 100644
--- a/pattern.h
+++ b/pattern.h
@@ -5,6 +5,7 @@
 #define PATTERN__H
 
 #include <stdbool.h>
+#include <sys/types.h>
 
 #define UNBOUNDED(pat) ((pat)->max_matchlen == -1)