1 files changed, 1 insertions, 0 deletions

diff --git a/gunzip.c b/gunzip.c
index f2bb59d..d6382ae 100644
--- a/gunzip.c
+++ b/gunzip.c
@@ -28,6 +28,7 @@
  */
 
 #include "internal.h"
+#include <getopt.h>
 
 static const char gunzip_usage[] =
 	"gunzip [OPTION]... FILE\n"