diff --git a/CMakeLists.txt b/CMakeLists.txt
index a0f74041..d3ddeaa3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -208,7 +208,7 @@ configure_file(cmake/whisper.pc.in
         @ONLY)
 
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/whisper.pc"
-        DESTINATION lib/pkgconfig)
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 
 #
 # programs, examples and tests
diff --git a/cmake/whisper.pc.in b/cmake/whisper.pc.in
index 00ec7912..200179d5 100644
--- a/cmake/whisper.pc.in
+++ b/cmake/whisper.pc.in
@@ -1,6 +1,6 @@
 prefix=@CMAKE_INSTALL_PREFIX@
 exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
+libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
 includedir=${prefix}/include
 
 Name: whisper