diff --git a/CMakeLists.txt b/CMakeLists.txt
index e6af930..f3eadf2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -191,7 +191,7 @@ set_target_properties(rtmidi PROPERTIES
 target_include_directories(rtmidi PRIVATE ${INCDIRS}
                                   PUBLIC
                                     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-                                    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
+                                    $<INSTALL_INTERFACE:include>)
 
 # Set compile-time definitions
 target_compile_definitions(rtmidi PRIVATE ${API_DEFS})