--- a/src/liblzma/liblzma.pc.in
+++ b/src/liblzma/liblzma.pc.in
@@ -7,8 +7,8 @@
 
 prefix=@prefix@
 exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
 
 Name: liblzma
 Description: General purpose data compression library