1 files changed, 1 insertions, 0 deletions

diff --git a/lnode.c b/lnode.c
index 427bc3c..4287489 100644
--- a/lnode.c
+++ b/lnode.c
@@ -21,6 +21,7 @@
    nodes.  */
 
 #include <pthread.h>
+#include <assert.h>
 #include <error.h>
 #include <stdlib.h>
 #include <string.h>