diff --git a/src/inc/opcodes.h b/src/inc/opcodes.h
index b6990e4..3c73ac8 100644
--- a/src/inc/opcodes.h
+++ b/src/inc/opcodes.h
@@ -64,7 +64,7 @@ void bit(void); // test bits in memory with accumulator
 void bmi(void); // branch on result minus
 void bne(void); // branch on result not zero
 void bpl(void); // branch on result plus
-void bkk(void); // force break
+void brk(void); // force break
 void bvc(void); // branch on overflow clear
 void bvs(void); // branch on overflow set
 void clc(void); // clear carry flag