diff --git a/firmware/target/arm/as3525/ascodec-target.h b/firmware/target/arm/as3525/ascodec-target.h
index 13946099c0..989712ad0f 100644
--- a/firmware/target/arm/as3525/ascodec-target.h
+++ b/firmware/target/arm/as3525/ascodec-target.h
@@ -25,6 +25,8 @@
 #ifndef _ASCODEC_TARGET_H
 #define _ASCODEC_TARGET_H
 
+#ifndef SIMULATOR
+
 #include "as3514.h"
 #include "kernel.h" /* for struct wakeup */
 
@@ -110,4 +112,6 @@ void ascodec_enable_endofch_irq(void);
 
 void ascodec_disable_endofch_irq(void);
 
+#endif /* !SIMULATOR */
+
 #endif /* !_ASCODEC_TARGET_H */