1 files changed, 1 insertions, 0 deletions
diff --git a/src/factor.c b/src/factor.c
index 38c9a115b..cf1868ce2 100644
--- a/src/factor.c
+++ b/src/factor.c
@@ -60,6 +60,7 @@ debug (char const *fmt, ...)
       va_list ap;
       va_start (ap, fmt);
       vfprintf (stderr, fmt, ap);
+      va_end (ap);
     }
 }