diff --git a/src/haproxy.c b/src/haproxy.c
index c878518..138b54e 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -1858,7 +1858,11 @@
 		exit(1);
 	}
 
-	pattern_finalize_config();
+	err_code |= pattern_finalize_config();
+	if (err_code & (ERR_ABORT|ERR_FATAL)) {
+		ha_alert("Failed to finalize pattern config.\n");
+		exit(1);
+	}
 
 	/* recompute the amount of per-process memory depending on nbproc and
 	 * the shared SSL cache size (allowed to exist in all processes).