diff --git a/firmware/config/boards/proteus/openblt/oblt_board.mk b/firmware/config/boards/proteus/openblt/oblt_board.mk
index f283023f06..4b59963aff 100644
--- a/firmware/config/boards/proteus/openblt/oblt_board.mk
+++ b/firmware/config/boards/proteus/openblt/oblt_board.mk
@@ -35,3 +35,5 @@ BRDFLAGS += -DBOOT_CPU_SYSTEM_SPEED_KHZ=168000
 BRDFLAGS += -DBOOT_COM_RS232_CHANNEL_INDEX=2
 # \brief Select the desired CAN peripheral as a zero based index.
 BRDFLAGS += -DBOOT_COM_CAN_CHANNEL_INDEX=0
+
+PROJ_FILES += $(PROJECT_DIR)/hw_layer/openblt/main_internal_osc.c
diff --git a/firmware/config/boards/proteus/openblt/main.c b/firmware/hw_layer/openblt/main_internal_osc.c
similarity index 100%
rename from firmware/config/boards/proteus/openblt/main.c
rename to firmware/hw_layer/openblt/main_internal_osc.c