diff --git a/CMakeLists.txt b/CMakeLists.txt
index de538932..f3d47b23 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -131,15 +131,22 @@ if(CMAKE_SIZEOF_VOID_P EQUAL 8)
 	set_target_properties(cryptopp-object PROPERTIES POSITION_INDEPENDENT_CODE TRUE)
 endif()
 
-
 if (BUILD_STATIC)
 	add_library(cryptopp-static STATIC $<TARGET_OBJECTS:cryptopp-object>)
-	target_include_directories(cryptopp-static PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<INSTALL_INTERFACE:include/cryptopp>)
+	if (NOT CMAKE_VERSION VERSION_LESS 2.8.12)
+		target_include_directories(cryptopp-static PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<INSTALL_INTERFACE:include/cryptopp>)
+	else()
+		include_directories("${ROOT_SOURCE_DIR}")
+	endif()
 endif()
 
 if (BUILD_SHARED)
 	add_library(cryptopp-shared SHARED $<TARGET_OBJECTS:cryptopp-object>)
-	target_include_directories(cryptopp-shared PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<INSTALL_INTERFACE:include/cryptopp>)
+	if (NOT CMAKE_VERSION VERSION_LESS 2.8.12)
+		target_include_directories(cryptopp-shared PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<INSTALL_INTERFACE:include/cryptopp>)
+	else()
+		include_directories("${ROOT_SOURCE_DIR}")
+	endif()
 endif()
 
 if(NOT MSVC)
@@ -252,4 +259,3 @@ endif()
 if(BUILD_DOCUMENTATION)
 	install(DIRECTORY "${out_source_DOCS_DIR}" DESTINATION ${CMAKE_INSTALL_DOCDIR})
 endif()
-