diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4145e1d8..cbba4aa9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -278,7 +278,7 @@ install(
 
 install(
   DIRECTORY include/wlcs
-  DESTINATION ${CMAKE_INSTALL_PREFIX}/include/
+  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
 )
 
 configure_file(
diff --git a/wlcs.pc.in b/wlcs.pc.in
index baaebe10..6db1b3e5 100644
--- a/wlcs.pc.in
+++ b/wlcs.pc.in
@@ -1,7 +1,7 @@
 prefix=@CMAKE_INSTALL_PREFIX@
-exec_prefix=${prefix}/@CMAKE_INSTALL_BINDIR@
-libexecdir=${prefix}/@CMAKE_INSTALL_LIBEXECDIR@
-includedir=${prefix}/include
+exec_prefix=@CMAKE_INSTALL_FULL_BINDIR@
+libexecdir=@CMAKE_INSTALL_FULL_LIBEXECDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 test_runner=${libexecdir}/wlcs/wlcs