diff --git a/c_pointers/chapter_5.c b/c_pointers/chapter_5.c
index b58a7b1..f7b4f85 100644
--- a/c_pointers/chapter_5.c
+++ b/c_pointers/chapter_5.c
@@ -113,6 +113,10 @@ int main(void) {
 
     }
 
+    #define KERNEL_PANIC 0x0000
+
+    char *mem = (int*) KERNEL_PANIC;
+
     // standard string operations
 
     // comparing strings