diff --git a/idt.c b/idt.c
index 20f5ee5..063611d 100644
--- a/idt.c
+++ b/idt.c
@@ -53,8 +53,8 @@ int idt_set_handler(int index, unsigned int addr, int priviledge)
     idte = idt + index;
 
     if (addr != (unsigned int)NULL) {
-        idte->offset_low  = addr && 0xffff;
-        idte->offset_high = (addr >> 16) && 0xffff;
+        idte->offset_low  = addr & 0xffff;
+        idte->offset_high = (addr >> 16) & 0xffff;
         idte->dpl         = priviledge;
         idte->present     = 1;
     } else {