diff --git a/solutions/04_system/silly/CMakeLists.txt b/solutions/04_system/silly/CMakeLists.txt
index 39ee0f6..14ccdf1 100644
--- a/solutions/04_system/silly/CMakeLists.txt
+++ b/solutions/04_system/silly/CMakeLists.txt
@@ -1,5 +1,4 @@
 cmake_minimum_required(VERSION 3.28)
 project(ex7-app)
 
-include(../../nanopi.cmake)
 add_executable(silly_led_control silly_led_control.c)
\ No newline at end of file
diff --git a/solutions/04_system/silly/Makefile b/solutions/04_system/silly/Makefile
index b2c3432..4019ee5 100644
--- a/solutions/04_system/silly/Makefile
+++ b/solutions/04_system/silly/Makefile
@@ -7,7 +7,7 @@ all: build/build.ninja
 
 # Create build directory and generate build files if needed
 build/build.ninja : CMakeLists.txt
-	cmake -S . -B build -G "Ninja"
+	cmake -S . -B build -G "Ninja" -DCMAKE_TOOLCHAIN_FILE=../../nanopi.cmake
 
 # Clean build directory
 clean: