1 files changed, 1 insertions, 0 deletions

diff --git a/ulfs.c b/ulfs.c
index 50affa6..773ebc4 100644
--- a/ulfs.c
+++ b/ulfs.c
@@ -19,6 +19,7 @@
 
 /* Underlying filesystem management.  */
 
+#include <assert.h>
 #include <stdlib.h>
 #include <error.h>
 #include <string.h>