diff --git a/cc/pgo.go b/cc/pgo.go
index 6c39d83..8eb3400 100644
--- a/cc/pgo.go
+++ b/cc/pgo.go
@@ -43,7 +43,7 @@
 const profileInstrumentFlag = "-fprofile-generate=/data/local/tmp"
 const profileSamplingFlag = "-gmlt -fdebug-info-for-profiling"
 const profileUseInstrumentFormat = "-fprofile-use=%s"
-const profileUseSamplingFormat = "-fprofile-sample-use=%s"
+const profileUseSamplingFormat = "-fprofile-sample-accurate -fprofile-sample-use=%s"
 
 func getPgoProfileProjects(config android.DeviceConfig) []string {
 	return config.OnceStringSlice(pgoProfileProjectsConfigKey, func() []string {