diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5ef890d..bd7ebc0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,10 @@ add_library(keycode STATIC
     src/keycode.c
 )
 
+target_include_directories(keycode
+    PUBLIC src
+)
+
 add_executable(keycode_test
     src/test.c
 )