diff --git a/debian/changelog b/debian/changelog
index e9bb67d..e92fe64 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -3,6 +3,8 @@ dns-flood-detector (1.12-7) UNRELEASED; urgency=low
   * Add trailing trunk/ at Vcs-Svn-field
   * Updating standards version to 3.9.3, no changes needed
   * Switch over to packaging format 3.0 (quit) (closes: #664409)
+  * Remove build-dependency of dpatch
+  * Use dh_prep instead of dh_clean -k
 
  -- Jan Wagner <waja@cyconet.org>  Wed, 10 Mar 2010 00:09:56 +0100
 
diff --git a/debian/control b/debian/control
index c004bdc..93f9e6e 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@ Source: dns-flood-detector
 Section: net
 Priority: optional
 Maintainer: Jan Wagner <waja@cyconet.org>
-Build-Depends: debhelper (>= 9), dpatch, libpcap0.8-dev
+Build-Depends: debhelper (>= 9), libpcap0.8-dev
 Homepage: http://www.adotout.com/
 Vcs-Browser: https://scm.uncompleted.org/projects/debian/repository/show/dns-flood-detector
 Vcs-Svn: https://scm.uncompleted.org/svn/debian/dns-flood-detector/trunk
diff --git a/debian/rules b/debian/rules
index 3ff2ce5..8e44d80 100755
--- a/debian/rules
+++ b/debian/rules
@@ -34,7 +34,7 @@ clean:
 install: build
 	dh_testdir
 	dh_testroot
-	dh_clean -k
+	dh_prep
 	dh_installdirs
 
 	# Add here commands to install the package into debian/dns-flood-detector.