diff --git a/src/common/Makefile b/src/common/Makefile
index f5dbec1..5af6f4a 100644
--- a/src/common/Makefile
+++ b/src/common/Makefile
@@ -16,4 +16,4 @@ depend:
 	mkdep -- ${CFLAGS} ${CPPFLAGS} ${SRCS}
 
 clean:
-	rm -f ${OBJS}
+	rm -f ${OBJS} .depend
diff --git a/src/lsc/Makefile b/src/lsc/Makefile
index d2745dd..ce01a0d 100644
--- a/src/lsc/Makefile
+++ b/src/lsc/Makefile
@@ -36,5 +36,5 @@ depend:
 	mkdep -- ${CFLAGS} ${CPPFLAGS} ${SRCS}
 
 clean:
-	rm -f ${OBJS} lsc y.tab.h
+	rm -f ${OBJS} lsc y.tab.h .depend
 
diff --git a/src/lsi/Makefile b/src/lsi/Makefile
index 7e21f0e..20d2052 100644
--- a/src/lsi/Makefile
+++ b/src/lsi/Makefile
@@ -37,4 +37,4 @@ depend:
 	mkdep -- ${CFLAGS} ${CPPFLAGS} ${SRCS}
 
 clean:
-	rm -f ${OBJS} lsi abi.c abi.lh
+	rm -f ${OBJS} lsi abi.c abi.lh .depend