diff --git a/bugfix-sysstat-10.1.5-read-ttyAMA-first-for-arm64.patch b/bugfix-sysstat-10.1.5-read-ttyAMA-first-for-arm64.patch
index 87eee5faeb6937499569ce24859a418db2e5357f..ffbfc2fbe6705bd4b1211394592d27d04d8576e6 100644
--- a/bugfix-sysstat-10.1.5-read-ttyAMA-first-for-arm64.patch
+++ b/bugfix-sysstat-10.1.5-read-ttyAMA-first-for-arm64.patch
@@ -41,7 +41,7 @@ index 68e2799..8ccfec4 100644
 -		return 0;
 +	if ((fp = fopen(TTYAMA, "r")) == NULL) {
 +		if ((fp = fopen(SERIAL, "r")) == NULL) {
-+			return;
++			return 0;
 +		}
 +	}