diff --git a/CMakeLists.txt b/CMakeLists.txt
index a87de1c..1ed0b10 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -229,7 +229,7 @@ install(FILES
 
 set(prefix ${CMAKE_INSTALL_PREFIX})
 set(exec_prefix "\${prefix}")
-set(libdir ${CMAKE_INSTALL_LIBDIR})
+set(libdir "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
 set(includedir "\${prefix}/include")
 if(WIN32)
     get_target_property(SIMPLEAMQPCLIENT_LIB SimpleAmqpClient OUTPUT_NAME)
diff --git a/libSimpleAmqpClient.pc.in b/libSimpleAmqpClient.pc.in
index 51340aa..c621095 100644
--- a/libSimpleAmqpClient.pc.in
+++ b/libSimpleAmqpClient.pc.in
@@ -9,4 +9,4 @@ Version: @SAC_APIVERSION@
 Requires.private: librabbitmq
 Libs: -L${libdir} -l@SIMPLEAMQPCLIENT_LIB@
 Libs.private: @libs_private@
-CFlags: -I${includedir} -I@Boost_INCLUDE_DIRS@
+CFlags: -I${includedir} -I"@Boost_INCLUDE_DIRS@"