diff --git a/kern/libkern/hexdump.c b/kern/libkern/hexdump.c
index 772095c..6eaa377 100644
--- a/kern/libkern/hexdump.c
+++ b/kern/libkern/hexdump.c
@@ -8,7 +8,7 @@ void hexdump(const void *data, size_t size) {
 
     for (i = 0; i < size; i += 16) {
         // Print offset
-        kprintf("%08zx  ", i);
+        kprintf("%08x  ", i);
 
         // Print hex bytes
         for (j = 0; j < 16; j++) {