diff --git a/debian/control b/debian/control
index 110b43a..2042962 100644
--- a/debian/control
+++ b/debian/control
@@ -254,6 +254,8 @@ Package: libnutscan-dev
 Section: libdevel
 Architecture: any
 Depends: libnutscan1 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends}
+Breaks: libupsclient-dev (<< 2.7.4-9~)
+Replaces: libupsclient-dev (<< 2.7.4-9~)
 Description: network UPS tools - development files for the scanner library
  Network UPS Tools (NUT) is a client/server monitoring system that
  allows computers to share uninterruptible power supply (UPS) and