diff --git a/config/boards/cubieboard2.conf b/config/boards/cubieboard2.eos
similarity index 100%
rename from config/boards/cubieboard2.conf
rename to config/boards/cubieboard2.eos
diff --git a/config/boards/pcduino2.conf b/config/boards/pcduino2.eos
similarity index 100%
rename from config/boards/pcduino2.conf
rename to config/boards/pcduino2.eos
diff --git a/config/boards/pcduino3.conf b/config/boards/pcduino3.eos
similarity index 100%
rename from config/boards/pcduino3.conf
rename to config/boards/pcduino3.eos
diff --git a/config/boards/pcduino3nano.conf b/config/boards/pcduino3nano.eos
similarity index 100%
rename from config/boards/pcduino3nano.conf
rename to config/boards/pcduino3nano.eos