diff --git a/CMakeModules/Install.cmake b/CMakeModules/Install.cmake
index 54f218a..08f0f3f 100644
--- a/CMakeModules/Install.cmake
+++ b/CMakeModules/Install.cmake
@@ -37,7 +37,7 @@ if (UNIX)
   configure_file(${CMAKE_MODULE_PATH}/LibWebRTC.pc.in
                  ${CMAKE_BINARY_DIR}/LibWebRTC.pc @ONLY)
   install(FILES ${CMAKE_BINARY_DIR}/LibWebRTC.pc
-          DESTINATION ${INSTALL_LIB_DIR}/pkg-config
+          DESTINATION ${INSTALL_PKGCONFIG_DIR}
           COMPONENT cmake)
 endif (UNIX)
 
diff --git a/CMakeModules/Options.cmake b/CMakeModules/Options.cmake
index c918ec6..8537e21 100644
--- a/CMakeModules/Options.cmake
+++ b/CMakeModules/Options.cmake
@@ -17,6 +17,10 @@ set(INSTALL_BIN_DIR bin CACHE PATH "Installation directory for executables")
 set(INSTALL_INCLUDE_DIR include CACHE PATH "Installation directory for header files")
 set(INSTALL_CMAKE_DIR lib/cmake/LibWebRTC CACHE PATH "Installation directory for CMake files")
 
+if (UNIX)
+  set(INSTALL_PKGCONFIG_DIR lib/pkgconfig CACHE PATH "Installation directory for pkg-config script")
+endif (UNIX)
+
 #
 # Make relative paths absolute (needed later on)
 foreach(p LIB BIN INCLUDE CMAKE)