diff -Nru a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt	2016-05-07 21:05:29.000000000 +0200
+++ b/src/CMakeLists.txt	2016-12-16 18:49:25.593946574 +0100
@@ -32,7 +32,7 @@
 # defined in the dependency directory that must be created before the former
 # CMakeLists.txt is processed
 
-set(SC_PLUGIN_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/${LIB_INSTALL_DIR}/subtitlecomposer CACHE INTERNAL EXPORTEDVARIABLE)
+set(SC_PLUGIN_INSTALL_DIR ${LIB_INSTALL_DIR}/subtitlecomposer CACHE INTERNAL EXPORTEDVARIABLE)
 message(STATUS "Subtitle Composer plugin path: ${SC_PLUGIN_INSTALL_DIR}")
 
 add_subdirectory(common)