1 files changed, 4 insertions, 2 deletions

diff --git a/cgit.c b/cgit.c
index f4dd6ef..e302a7c 100644
--- a/cgit.c
+++ b/cgit.c
@@ -31,2 +31,3 @@ struct cgit_filter *new_filter(const char *cmd, int extra_args)
         struct cgit_filter *f;
+        int args_size = 0;
 
@@ -37,5 +38,6 @@ struct cgit_filter *new_filter(const char *cmd, int extra_args)
         f->cmd = xstrdup(cmd);
-        f->argv = xmalloc((2 + extra_args) * sizeof(char *));
+        args_size = (2 + extra_args) * sizeof(char *);
+        f->argv = xmalloc(args_size);
+        memset(f->argv, 0, args_size);
         f->argv[0] = f->cmd;
-        f->argv[1] = NULL;
         return f;