diff --git a/etc/SuperBuild/cmake/Modules/Buildglfw3.cmake b/etc/SuperBuild/cmake/Modules/Buildglfw3.cmake
index 260ffcba..22cc10fd 100644
--- a/etc/SuperBuild/cmake/Modules/Buildglfw3.cmake
+++ b/etc/SuperBuild/cmake/Modules/Buildglfw3.cmake
@@ -9,7 +9,7 @@ set(glfw3_PATCH
     ${CMAKE_CURRENT_BINARY_DIR}/glfw3/src/glfw3/src/nsgl_context.m)
 if(TLRENDER_GLFW_DISABLE_MACOS_APP_DELEGATE)
     list(APPEND glfw3_PATCH
-        ${CMAKE_COMMAND} -E copy_if_different
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
         ${CMAKE_CURRENT_SOURCE_DIR}/glfw3-patch/src/cocoa_init.m
         ${CMAKE_CURRENT_BINARY_DIR}/glfw3/src/glfw3/src/cocoa_init.m)
 endif()