diff --git a/kernel/src/print/print.c b/kernel/src/print/print.c
index 8e1dea5..3269009 100644
--- a/kernel/src/print/print.c
+++ b/kernel/src/print/print.c
@@ -38,20 +38,22 @@ static void printhex(size_t num) {
 
 static void printdec(size_t num) {
     int i;
-    char buf[21] = {0};
+    char buf[32];
 
     if (!num) {
-        putchar('0');
+        puts("0");
         return;
     }
 
-    for (i = 19; num; i--) {
-        buf[i] = (num % 10) + 0x30;
-        num = num / 10;
+    buf[32] = 0;
+
+    for (i = 31; num; i--) {
+        buf[i] = (num % 10) + '0';
+        num /= 10;
     }
 
     i++;
-    puts(buf + i);
+    puts(&buf[i]);
 }
 
 void printf(const char *format, ...) {