diff --git a/du5/program.c b/du5/program.c
index 0b47161..1d66286 100644
--- a/du5/program.c
+++ b/du5/program.c
@@ -41,7 +41,7 @@ int main()
         }
         else
         {
-            sscanf(line, "%s [^?]", &question);
+            sscanf(line, "%127[^?]", question);
         }
     }