diff --git a/firmware/Makefile b/firmware/Makefile
index aeb086c..20e7acc 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -35,7 +35,7 @@ program_unix: main.hex
 
 # rule for deleting dependent files (those which can be built by Make):
 clean:
-	rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.elf $(OBJECTS) main.s usbdrv/oddebug.s usbdrv/usbdrv.s
+	rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.elf $(OBJECTS) main.s usbdrv/oddebug.s usbdrv/usbdrv.s source/shared_*
 
 # Generic rule for compiling C files:
 .c.o:
diff --git a/host/Makefile b/host/Makefile
index dc06cc1..4d7d3cb 100644
--- a/host/Makefile
+++ b/host/Makefile
@@ -37,4 +37,5 @@ shared:
 #clean on unix and windows(.exe)
 clean:
 	rm -f $(TARGET) $(TARGET).exe $(OBJECTS)
+	rm -f source/shared_*