diff --git a/config/boards/sk-am62b.conf b/config/boards/sk-am62b.eos
similarity index 100%
rename from config/boards/sk-am62b.conf
rename to config/boards/sk-am62b.eos
diff --git a/config/boards/sk-am64b.conf b/config/boards/sk-am64b.eos
similarity index 100%
rename from config/boards/sk-am64b.conf
rename to config/boards/sk-am64b.eos
diff --git a/config/boards/sk-am68.conf b/config/boards/sk-am68.eos
similarity index 100%
rename from config/boards/sk-am68.conf
rename to config/boards/sk-am68.eos
diff --git a/config/boards/sk-tda4vm.conf b/config/boards/sk-tda4vm.eos
similarity index 100%
rename from config/boards/sk-tda4vm.conf
rename to config/boards/sk-tda4vm.eos