diff --git a/yaml-cpp.pc.cmake b/yaml-cpp.pc.cmake
index 58e25af..cf4b3d0 100644
--- a/yaml-cpp.pc.cmake
+++ b/yaml-cpp.pc.cmake
@@ -1,7 +1,7 @@
 prefix=@CMAKE_INSTALL_PREFIX@
 exec_prefix=@CMAKE_INSTALL_PREFIX@
-libdir=@LIB_INSTALL_DIR@
-includedir=@INCLUDE_INSTALL_DIR@
+libdir=${prefix}/@LIB_INSTALL_DIR@
+includedir=${prefix}/@INCLUDE_INSTALL_DIR@
 
 Name: Yaml-cpp
 Description: A YAML parser and emitter for C++