diff --git a/third_party/unzip/unzip.c b/third_party/unzip/unzip.c
index ce77acbcb..a68d3a3b0 100644
--- a/third_party/unzip/unzip.c
+++ b/third_party/unzip/unzip.c
@@ -3071,7 +3071,7 @@ static void show_options(__G)
     char gr[4];
     char sh[7];
     char lo[80];
-    char val_type[5];
+    char val_type[8];
     char neg[2];
 
 #if 0