diff --git a/build/buildtools/commondefs b/build/buildtools/commondefs.firm
similarity index 100%
rename from build/buildtools/commondefs
rename to build/buildtools/commondefs.firm
diff --git a/build/buildtools/modulerules b/build/buildtools/modulerules.firm
similarity index 100%
rename from build/buildtools/modulerules
rename to build/buildtools/modulerules.firm