diff --git a/crypto/fipsmodule/cpucap/cpu_arm_freebsd.c b/crypto/fipsmodule/cpucap/cpu_arm_freebsd.c
index 209a49f084..ac71ac27b1 100644
--- a/crypto/fipsmodule/cpucap/cpu_arm_freebsd.c
+++ b/crypto/fipsmodule/cpucap/cpu_arm_freebsd.c
@@ -30,7 +30,9 @@ void OPENSSL_cpuid_setup(void) {
   // left at zero. The rest of this function will then gracefully report
   // the features are absent.
   elf_aux_info(AT_HWCAP, &hwcap, sizeof(hwcap));
+#if defined(AT_HWCAP2)
   elf_aux_info(AT_HWCAP2, &hwcap2, sizeof(hwcap2));
+#endif
 
   // Matching OpenSSL, only report other features if NEON is present.
   if (hwcap & HWCAP_NEON) {
diff --git a/crypto/fipsmodule/cpucap/cpu_arm_linux.c b/crypto/fipsmodule/cpucap/cpu_arm_linux.c
index e4ab5ab492..a2c5a18096 100644
--- a/crypto/fipsmodule/cpucap/cpu_arm_linux.c
+++ b/crypto/fipsmodule/cpucap/cpu_arm_linux.c
@@ -118,7 +118,11 @@ void OPENSSL_cpuid_setup(void) {
     // this is now rare (see Chrome's Net.NeedsHWCAP2Workaround metric), but AES
     // and PMULL extensions are very useful, so we still carry the workaround
     // for now.
+#if defined(AT_HWCAP2)
     unsigned long hwcap2 = getauxval(AT_HWCAP2);
+#else
+    unsigned long hwcap2 = 0;
+#endif
     if (hwcap2 == 0) {
       hwcap2 = crypto_get_arm_hwcap2_from_cpuinfo(&cpuinfo);
       g_needs_hwcap2_workaround = hwcap2 != 0;
diff --git a/crypto/fipsmodule/cpucap/cpu_ppc64le.c b/crypto/fipsmodule/cpucap/cpu_ppc64le.c
index 61fe953846..db420dcc72 100644
--- a/crypto/fipsmodule/cpucap/cpu_ppc64le.c
+++ b/crypto/fipsmodule/cpucap/cpu_ppc64le.c
@@ -68,7 +68,11 @@ static void handle_cpu_env(unsigned long *out, const char *in) {
 extern uint8_t OPENSSL_cpucap_initialized;
 
 void OPENSSL_cpuid_setup(void) {
+#if defined(AT_HWCAP2)
   OPENSSL_ppc64le_hwcap2 = getauxval(AT_HWCAP2);
+#else
+  OPENSSL_ppc64le_hwcap2 = 0;
+#endif
   OPENSSL_cpucap_initialized = 1;
 
   // OPENSSL_ppccap is a 64-bit hex string which may start with "0x".