diff --git a/examples/termbox2-demo/CMakeLists.txt b/examples/termbox2-demo/CMakeLists.txt
index 1418be9..20d9026 100644
--- a/examples/termbox2-demo/CMakeLists.txt
+++ b/examples/termbox2-demo/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.25)
 project(clay_examples_termbox2_demo C)
-set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD 11)
 
 include(FetchContent)
 set(FETCHCONTENT_QUIET FALSE)
diff --git a/examples/termbox2-image-demo/CMakeLists.txt b/examples/termbox2-image-demo/CMakeLists.txt
index c20c299..3efdf32 100644
--- a/examples/termbox2-image-demo/CMakeLists.txt
+++ b/examples/termbox2-image-demo/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.25)
 project(clay_examples_termbox2_image_demo C)
-set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD 11)
 set(CMAKE_BUILD_TYPE Release)
 set(CMAKE_C_FLAGS_RELEASE "-O3")