diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 12773f3..26b28da 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -16,4 +16,4 @@ install(TARGETS CppLinuxSerial DESTINATION lib)
 
 # On Linux, "sudo make install" will typically copy the
 # folder into /usr/local/include
-install(DIRECTORY ${CMAKE_SOURCE_DIR}/include/CppLinuxSerial DESTINATION include)
\ No newline at end of file
+install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../include/CppLinuxSerial DESTINATION include)