diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5da4f54..c2702ff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,4 +80,5 @@ include_directories(${PROJECT_BINARY_DIR})
 
 install(TARGETS ibarr DESTINATION bin)
 
-install(FILES ibarr.service DESTINATION /lib/systemd/system)
+configure_file(ibarr.service.in ibarr.service)
+install(FILES ${CMAKE_BINARY_DIR}/ibarr.service DESTINATION lib/systemd/system)
diff --git a/ibarr.service b/ibarr.service.in
similarity index 88%
rename from ibarr.service
rename to ibarr.service.in
index dd812e2..5060ed1 100644
--- a/ibarr.service
+++ b/ibarr.service.in
@@ -3,7 +3,7 @@ Description=Nvidia address and route userspace resolution services for Infiniban
 Documentation=https://github.com/Melanox/ip2gid/
 
 [Service]
-ExecStart=/usr/bin/ibarr
+ExecStart=@CMAKE_INSTALL_PREFIX@/bin/ibarr
 # Try to restrict it, because it hardly reads and writes files:
 PrivateTmp=yes
 ProtectHome=yes