diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 220e7720fbdb..ecdac427d9c4 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2461,15 +2461,16 @@ static void print_cpu_pmu_caps(struct feat_fd *ff, FILE *fp)
 static void print_pmu_caps(struct feat_fd *ff, FILE *fp)
 {
 	struct perf_env *env = &ff->ph->env;
-	struct pmu_caps *pmu_caps;
+	uint16_t e_machine = perf_env__e_machine(env, /*e_flags=*/NULL);
 
 	for (int i = 0; i < env->nr_pmus_with_caps; i++) {
-		pmu_caps = &env->pmu_caps[i];
+		struct pmu_caps *pmu_caps = &env->pmu_caps[i];
+
 		__print_pmu_caps(fp, pmu_caps->nr_caps, pmu_caps->caps,
 				 pmu_caps->pmu_name);
 	}
 
-	if (strcmp(perf_env__arch(env), "x86") == 0 &&
+	if ((e_machine == EM_X86_64 || e_machine == EM_386) &&
 	    perf_env__has_pmu_mapping(env, "ibs_op")) {
 		char *max_precise = perf_env__find_pmu_cap(env, "cpu", "max_precise");