diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a0be580e..16cb1749 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -194,31 +194,37 @@ if (GLFW_BUILD_X11)
     if (NOT X11_Xrandr_INCLUDE_PATH)
         message(FATAL_ERROR "RandR headers not found; install libxrandr development package")
     endif()
+    target_include_directories(glfw PRIVATE "${X11_Xrandr_INCLUDE_PATH}")
 
     # Check for Xinerama (legacy multi-monitor support)
     if (NOT X11_Xinerama_INCLUDE_PATH)
         message(FATAL_ERROR "Xinerama headers not found; install libxinerama development package")
     endif()
+    target_include_directories(glfw PRIVATE "${X11_Xinerama_INCLUDE_PATH}")
 
     # Check for Xkb (X keyboard extension)
     if (NOT X11_Xkb_INCLUDE_PATH)
         message(FATAL_ERROR "XKB headers not found; install X11 development package")
     endif()
+    target_include_directories(glfw PRIVATE "${X11_Xkb_INCLUDE_PATH}")
 
     # Check for Xcursor (cursor creation from RGBA images)
     if (NOT X11_Xcursor_INCLUDE_PATH)
         message(FATAL_ERROR "Xcursor headers not found; install libxcursor development package")
     endif()
+    target_include_directories(glfw PRIVATE "${X11_Xcursor_INCLUDE_PATH}")
 
     # Check for XInput (modern HID input)
     if (NOT X11_Xi_INCLUDE_PATH)
         message(FATAL_ERROR "XInput headers not found; install libxi development package")
     endif()
+    target_include_directories(glfw PRIVATE "${X11_Xi_INCLUDE_PATH}")
 
     # Check for X Shape (custom window input shape)
     if (NOT X11_Xshape_INCLUDE_PATH)
         message(FATAL_ERROR "X Shape headers not found; install libxext development package")
     endif()
+    target_include_directories(glfw PRIVATE "${X11_Xshape_INCLUDE_PATH}")
 endif()
 
 if (UNIX AND NOT APPLE)