diff --git a/build/CMakeLists.txt b/build/CMakeLists.txt
index 26815dec..da20f066 100644
--- a/build/CMakeLists.txt
+++ b/build/CMakeLists.txt
@@ -76,7 +76,7 @@ if(WITH_LIBRARY)
 
   FILE(GLOB LIBI2PD_HEADERS ${LIBI2PD_SRC_DIR}/*.h*)
   install(FILES ${LIBI2PD_HEADERS}
-    DESTINATION include/libi2pd
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libi2pd
     COMPONENT Libraries)
 endif()
 
@@ -94,7 +94,7 @@ if(WITH_LIBRARY)
 
   FILE(GLOB LIBI2PD_CLIENT_HEADERS ${LIBI2PD_CLIENT_SRC_DIR}/*.h*)
   install(FILES ${LIBI2PD_CLIENT_HEADERS}
-    DESTINATION include/libi2pdclient
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libi2pdclient
     COMPONENT Libraries)
 endif()
 
@@ -112,7 +112,7 @@ if(WITH_LIBRARY)
 
   FILE(GLOB LANG_HEADERS ${LANG_SRC_DIR}/*.h*)
   install(FILES ${LANG_HEADERS}
-    DESTINATION include/libi2pdlang
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libi2pdlang
     COMPONENT Libraries)
 endif()
 
diff --git a/build/cmake/i2pdConfig.cmake b/build/cmake/i2pdConfig.cmake
index fd0a5404..827e30b7 100644
--- a/build/cmake/i2pdConfig.cmake
+++ b/build/cmake/i2pdConfig.cmake
@@ -1,6 +1,6 @@
-set(libi2pd_INCLUDE_DIR ${CMAKE_INSTALL_PREFIX}/include)
-set(libi2pd_LIBRARIES ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libi2pd.a)
-set(libi2pdclient_INCLUDE_DIR ${CMAKE_INSTALL_PREFIX}/include)
-set(libi2pdclient_LIBRARIES ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libi2pdclient.a)
-set(libi2pdlang_INCLUDE_DIR ${CMAKE_INSTALL_PREFIX}/include)
-set(libi2pdlang_LIBRARIES ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libi2pdlang.a)
+set(libi2pd_INCLUDE_DIR ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+set(libi2pd_LIBRARIES ${CMAKE_INSTALL_FULL_LIBDIR}/libi2pd.a)
+set(libi2pdclient_INCLUDE_DIR ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+set(libi2pdclient_LIBRARIES ${CMAKE_INSTALL_FULL_LIBDIR}/libi2pdclient.a)
+set(libi2pdlang_INCLUDE_DIR ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+set(libi2pdlang_LIBRARIES ${CMAKE_INSTALL_FULL_LIBDIR}/libi2pdlang.a)