diff --git a/firmware/bootloader/src/rusefi_stubs.cpp b/firmware/bootloader/src/rusefi_stubs.cpp
index 50439e5f3e..f62657d8b9 100644
--- a/firmware/bootloader/src/rusefi_stubs.cpp
+++ b/firmware/bootloader/src/rusefi_stubs.cpp
@@ -31,6 +31,8 @@ LoggingWithStorage::LoggingWithStorage(const char *name) : Logging(name, DEFAULT
 
 // this is supposed to be taken from chconf_common.h but it does not work? I am not sure why :(
 // TODO: make this be defined by chconf_common.h?
-void irqEnterHook() {}
-void irqExitHook() {}
-void contextSwitchHook() {}
\ No newline at end of file
+#if ! ENABLE_PERF_TRACE
+//void irqEnterHook() {}
+//void irqExitHook() {}
+//void contextSwitchHook() {}
+#endif /* ENABLE_PERF_TRACE */
\ No newline at end of file