1 files changed, 1 insertions, 0 deletions

diff --git a/alloc.h b/alloc.h
index fdabd2a..2c9b04e 100644
--- a/alloc.h
+++ b/alloc.h
@@ -29,6 +29,7 @@
  */
 
 #ifndef HIREDIS_ALLOC_H
+#define HIREDIS_ALLOC_H
 
 #include <stdlib.h> /* for size_t */