diff --git a/dtool/Package.cmake b/dtool/CMakeLists.txt
similarity index 100%
rename from dtool/Package.cmake
rename to dtool/CMakeLists.txt
diff --git a/dtool/metalibs/dtool/Sources.cmake b/dtool/metalibs/dtool/CMakeLists.txt
similarity index 100%
rename from dtool/metalibs/dtool/Sources.cmake
rename to dtool/metalibs/dtool/CMakeLists.txt
diff --git a/dtool/src/dtoolbase/Sources.cmake b/dtool/src/dtoolbase/CMakeLists.txt
similarity index 100%
rename from dtool/src/dtoolbase/Sources.cmake
rename to dtool/src/dtoolbase/CMakeLists.txt
diff --git a/dtool/src/dtoolutil/Sources.cmake b/dtool/src/dtoolutil/CMakeLists.txt
similarity index 100%
rename from dtool/src/dtoolutil/Sources.cmake
rename to dtool/src/dtoolutil/CMakeLists.txt