diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 5664404..56eaa46 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,6 +1,6 @@
-add_executable (i2c_HMC5883L i2c_HMC5883L.cpp)
-add_executable (hellomaa hellomaa.cpp)
-add_executable (cycle-pwm3 cycle-pwm3.cpp)
+add_executable (i2c_HMC5883L i2c_HMC5883L.cxx)
+add_executable (hellomaa hellomaa.cxx)
+add_executable (cycle-pwm3 cycle-pwm3.cxx)
 
 include_directories(${PROJECT_SOURCE_DIR}/api ${PROJECT_SOURCE_DIR}/include)
 
diff --git a/examples/blink-io8.cpp b/examples/blink-io8.cxx
similarity index 100%
rename from examples/blink-io8.cpp
rename to examples/blink-io8.cxx
diff --git a/examples/cycle-pwm3.cpp b/examples/cycle-pwm3.cxx
similarity index 100%
rename from examples/cycle-pwm3.cpp
rename to examples/cycle-pwm3.cxx
diff --git a/examples/hellomaa.cpp b/examples/hellomaa.cxx
similarity index 100%
rename from examples/hellomaa.cpp
rename to examples/hellomaa.cxx
diff --git a/examples/i2c_HMC5883L.cpp b/examples/i2c_HMC5883L.cxx
similarity index 100%
rename from examples/i2c_HMC5883L.cpp
rename to examples/i2c_HMC5883L.cxx