diff --git a/caps.cc b/caps.cc
index ca5745b..b0a2ee5 100644
--- a/caps.cc
+++ b/caps.cc
@@ -109,9 +109,7 @@ static const std::string capToStr(int val) {
 	}
 
 	std::string res;
-	res.append("CAP_UNKNOWN(");
-	res.append(std::to_string(val));
-	res.append(")");
+	res.append("CAP_UNKNOWN(").append(std::to_string(val)).append(")");
 	return res;
 }