diff --git a/cc/test.go b/cc/test.go
index 0e66e28..5c49d6e 100644
--- a/cc/test.go
+++ b/cc/test.go
@@ -173,7 +173,7 @@
 		if test, ok := m.linker.(testPerSrc); ok {
 			numTests := len(test.srcs())
 			if test.testPerSrc() && numTests > 0 {
-				if duplicate, found := checkDuplicate(test.srcs()); found {
+				if duplicate, found := android.CheckDuplicate(test.srcs()); found {
 					mctx.PropertyErrorf("srcs", "found a duplicate entry %q", duplicate)
 					return
 				}
@@ -206,17 +206,6 @@
 	}
 }
 
-func checkDuplicate(values []string) (duplicate string, found bool) {
-	seen := make(map[string]string)
-	for _, v := range values {
-		if duplicate, found = seen[v]; found {
-			return
-		}
-		seen[v] = v
-	}
-	return
-}
-
 type testDecorator struct {
 	Properties TestProperties
 	linker     *baseLinker