diff --git a/include/haproxy/cpuset-t.h b/include/haproxy/cpuset-t.h
index 3a479e88a..d3ebb356c 100644
--- a/include/haproxy/cpuset-t.h
+++ b/include/haproxy/cpuset-t.h
@@ -48,7 +48,6 @@ struct hap_cpuset {
 };
 
 struct cpu_map {
-	struct hap_cpuset proc_t1           ;   /* list of CPU masks for the 1st thread of the group */
 	struct hap_cpuset thread[MAX_THREADS_PER_GROUP];  /* list of CPU masks for the 32/64 threads of this group */
 };
 
diff --git a/src/haproxy.c b/src/haproxy.c
index 6b8fdf158..ac6c50340 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -1533,7 +1533,6 @@ static void init_early(int argc, char **argv)
 		int g, i;
 
 		for (g = 0; g < MAX_TGROUPS; g++) {
-			ha_cpuset_zero(&cpu_map[g].proc_t1);
 			for (i = 0; i < MAX_THREADS_PER_GROUP; ++i) {
 				ha_cpuset_zero(&cpu_map[g].thread[i]);
 			}