diff --git a/sensors/nfstrace/GNUmakefile.in b/sensors/nfstrace/GNUmakefile.in
index 7b7a1a30021b6f620c7c3f5340e418cd549d8d8f..f4fc749ad49db369b468d7a77802fd7369fc6f62 100644
--- a/sensors/nfstrace/GNUmakefile.in
+++ b/sensors/nfstrace/GNUmakefile.in
@@ -39,6 +39,10 @@ make.nfsdump:
 	cd $(SRCDIR)/nfsdump2/ && ./config.status
 	cd $(SRCDIR)/nfsdump2 && $(MAKE)
 
+clean.nfsdump:
+	cd $(SRCDIR)/nfsdump2/ && ./config.status
+	cd $(SRCDIR)/nfsdump2 && $(MAKE) clean
+
 $(SRCDIR)/nfsdump2/nfsdump: $(SRCDIR)/nfsdump2/config.status make.nfsdump
 
 nfsdump: $(SRCDIR)/nfsdump2/nfsdump
@@ -142,5 +146,5 @@ else
 fs-install install:
 endif
 
-clean:
+clean:	clean.nfsdump
 	rm -f *.o core nfstrace.proxy nfsdump nfstrace.init