1 files changed, 3 insertions, 3 deletions
diff --git a/reg/sim.h b/reg/sim.h
index 59b9107..a9559b1 100644
--- a/reg/sim.h
+++ b/reg/sim.h
@@ -1,5 +1,5 @@
-#ifndef LIB_REG_SIM_H
-#define LIB_REG_SIM_H
+#ifndef MK20DX256_REG_SIM_H
+#define MK20DX256_REG_SIM_H
 
 #include <reg/regdefs.h>
 
@@ -108,4 +108,4 @@
 // Unique Identification Register Low
 #define SIM_UIDL REG_32(0x40048060)
 
-#endif /* LIB_REG_SIM_H */
+#endif /* MK20DX256_REG_SIM_H */