diff --git a/infolabs/procmemorylearning/code.c b/infolabs/procmemorylearning/code.c
index 5612071..f058a04 100644
--- a/infolabs/procmemorylearning/code.c
+++ b/infolabs/procmemorylearning/code.c
@@ -16,7 +16,7 @@ int main() {
     cpumodel(cpum);
     
     printf("Buff: ");
-    if (getchar() == '1') {
+    if (getchar() == '0') {
         setbuf(stdin, NULL);
         printf("buff is off\n");
     } else {