diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9454fe9..ef53580 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -196,7 +196,7 @@ install(
 	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
 )
 install(
-	DIRECTORY ${CMAKE_SOURCE_DIR}/include/
+	DIRECTORY include/
 	DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
 	FILES_MATCHING PATTERN "*.h"
 )