diff --git a/cc/builder.go b/cc/builder.go
index 72c2fa5..7161ccf 100644
--- a/cc/builder.go
+++ b/cc/builder.go
@@ -413,7 +413,7 @@
 // Objects is a collection of file paths corresponding to outputs for C++ related build statements.
 type Objects struct {
 	objFiles      android.Paths
-	tidyFiles     android.WritablePaths
+	tidyFiles     android.Paths
 	coverageFiles android.Paths
 	sAbiDumpFiles android.Paths
 	kytheFiles    android.Paths
@@ -422,7 +422,7 @@
 func (a Objects) Copy() Objects {
 	return Objects{
 		objFiles:      append(android.Paths{}, a.objFiles...),
-		tidyFiles:     append(android.WritablePaths{}, a.tidyFiles...),
+		tidyFiles:     append(android.Paths{}, a.tidyFiles...),
 		coverageFiles: append(android.Paths{}, a.coverageFiles...),
 		sAbiDumpFiles: append(android.Paths{}, a.sAbiDumpFiles...),
 		kytheFiles:    append(android.Paths{}, a.kytheFiles...),
@@ -451,11 +451,11 @@
 
 	// Source files are one-to-one with tidy, coverage, or kythe files, if enabled.
 	objFiles := make(android.Paths, len(srcFiles))
-	var tidyFiles android.WritablePaths
+	var tidyFiles android.Paths
 	noTidySrcsMap := make(map[android.Path]bool)
 	var tidyVars string
 	if flags.tidy {
-		tidyFiles = make(android.WritablePaths, 0, len(srcFiles))
+		tidyFiles = make(android.Paths, 0, len(srcFiles))
 		for _, path := range noTidySrcs {
 			noTidySrcsMap[path] = true
 		}
@@ -665,7 +665,6 @@
 				rule = clangTidyRE
 			}
 
-			ctx.TidyFile(tidyFile)
 			ctx.Build(pctx, android.BuildParams{
 				Rule:        rule,
 				Description: "clang-tidy " + srcFile.Rel(),
@@ -719,7 +718,7 @@
 // Generate a rule for compiling multiple .o files to a static library (.a)
 func transformObjToStaticLib(ctx android.ModuleContext,
 	objFiles android.Paths, wholeStaticLibs android.Paths,
-	flags builderFlags, outputFile android.ModuleOutPath, deps android.Paths, validations android.WritablePaths) {
+	flags builderFlags, outputFile android.ModuleOutPath, deps android.Paths, validations android.Paths) {
 
 	arCmd := "${config.ClangBin}/llvm-ar"
 	arFlags := ""
@@ -734,7 +733,7 @@
 			Output:      outputFile,
 			Inputs:      objFiles,
 			Implicits:   deps,
-			Validations: validations.Paths(),
+			Validations: validations,
 			Args: map[string]string{
 				"arFlags": "crsPD" + arFlags,
 				"arCmd":   arCmd,
@@ -764,7 +763,7 @@
 func transformObjToDynamicBinary(ctx android.ModuleContext,
 	objFiles, sharedLibs, staticLibs, lateStaticLibs, wholeStaticLibs, deps, crtBegin, crtEnd android.Paths,
 	groupLate bool, flags builderFlags, outputFile android.WritablePath,
-	implicitOutputs android.WritablePaths, validations android.WritablePaths) {
+	implicitOutputs android.WritablePaths, validations android.Paths) {
 
 	ldCmd := "${config.ClangBin}/clang++"
 
@@ -831,7 +830,7 @@
 		Inputs:          objFiles,
 		Implicits:       deps,
 		OrderOnly:       sharedLibs,
-		Validations:     validations.Paths(),
+		Validations:     validations,
 		Args:            args,
 	})
 }