diff --git a/examples/cpp/interactive/CMakeLists.txt b/examples/cpp/interactive/CMakeLists.txt
index 63671d9..ea897b7 100644
--- a/examples/cpp/interactive/CMakeLists.txt
+++ b/examples/cpp/interactive/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.2)
 project(libicsneocpp-interactive-example VERSION 0.2.0)
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED 11)
 
 include(GNUInstallDirs)
 
diff --git a/examples/cpp/simple/CMakeLists.txt b/examples/cpp/simple/CMakeLists.txt
index e89a63f..4a5f5ec 100644
--- a/examples/cpp/simple/CMakeLists.txt
+++ b/examples/cpp/simple/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.2)
 project(libicsneocpp-simple-example VERSION 0.2.0)
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED 11)
 
 include(GNUInstallDirs)