diff --git a/radio/src/tests/CMakeLists.txt b/radio/src/tests/CMakeLists.txt
index 7d07d6ff1..b56549908 100644
--- a/radio/src/tests/CMakeLists.txt
+++ b/radio/src/tests/CMakeLists.txt
@@ -19,7 +19,7 @@ if(GTEST_INCDIR AND GTEST_SRCDIR AND Qt5Widgets_FOUND)
 
     foreach(model_file ${EXTRACT_MODEL_FILES})
       add_custom_command(
-        DEPENDS ${TESTS_PATH}/${model_file}.etx
+        DEPENDS ${TESTS_PATH}/${model_file}.otx
         OUTPUT ${TESTS_BUILD_PATH}/${model_file}/RADIO/radio.bin
         COMMAND mkdir -p ${model_file} && cd ${model_file} && unzip -o -q -DD ${TESTS_PATH}/${model_file}.etx >/dev/null
         WORKING_DIRECTORY ${TESTS_BUILD_PATH}
diff --git a/radio/src/tests/model_23_x10.etx b/radio/src/tests/model_23_x10.otx
similarity index 100%
rename from radio/src/tests/model_23_x10.etx
rename to radio/src/tests/model_23_x10.otx
diff --git a/radio/src/tests/model_23_x12s.etx b/radio/src/tests/model_23_x12s.otx
similarity index 100%
rename from radio/src/tests/model_23_x12s.etx
rename to radio/src/tests/model_23_x12s.otx
diff --git a/radio/src/tests/model_25_tx16s.etx b/radio/src/tests/model_25_tx16s.otx
similarity index 100%
rename from radio/src/tests/model_25_tx16s.etx
rename to radio/src/tests/model_25_tx16s.otx