diff --git a/cmake/whisper.pc.in b/cmake/whisper.pc.in
index 67aaafdeaae..50ab4f8285a 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=@CMAKE_INSTALL_FULL_LIBDIR@
 includedir=${prefix}/include
 
 Name: whisper