diff --git a/src/machines/traffic lights/basic intersection.edges b/src/machines/traffic lights/basic intersection.jssm
similarity index 100%
rename from src/machines/traffic lights/basic intersection.edges
rename to src/machines/traffic lights/basic intersection.jssm
diff --git a/src/machines/traffic lights/simple light with flash red.edges b/src/machines/traffic lights/simple light with flash red.jssm
similarity index 100%
rename from src/machines/traffic lights/simple light with flash red.edges
rename to src/machines/traffic lights/simple light with flash red.jssm
diff --git a/src/machines/traffic lights/simple light.edges b/src/machines/traffic lights/simple light.jssm
similarity index 100%
rename from src/machines/traffic lights/simple light.edges
rename to src/machines/traffic lights/simple light.jssm