diff --git a/cc/pgo.go b/cc/pgo.go
index 0072355..e341d03 100644
--- a/cc/pgo.go
+++ b/cc/pgo.go
@@ -177,6 +177,10 @@
 		// if profileFile gets updated
 		flags.CFlagsDeps = append(flags.CFlagsDeps, profileFilePath)
 		flags.LdFlagsDeps = append(flags.LdFlagsDeps, profileFilePath)
+
+		if props.isSampling() {
+			flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,-mllvm,-no-warn-sample-unused=true")
+		}
 	}
 	return flags
 }