diff --git a/crc-simd.cpp b/crc-simd.cpp
index 10eb206c..bda4b2d2 100644
--- a/crc-simd.cpp
+++ b/crc-simd.cpp
@@ -78,7 +78,7 @@ bool CPU_TryCRC32_ARMV8()
     }
     return result;
 #else
-#   if defined(__linux__)
+#   if defined(__linux__) && (defined(__aarch32__) || defined(__aarch64__))
 	if (getauxval(AT_HWCAP) & HWCAP_CRC32)
 		return true;
 #   endif
diff --git a/gcm-simd.cpp b/gcm-simd.cpp
index 78b4ebbe..d42307d3 100644
--- a/gcm-simd.cpp
+++ b/gcm-simd.cpp
@@ -211,7 +211,7 @@ bool CPU_TryPMULL_ARMV8()
     }
     return result;
 # else
-#   if defined(__linux__)
+#   if defined(__linux__) && (defined(__aarch32__) || defined(__aarch64__))
 	if (getauxval(AT_HWCAP) & HWCAP_PMULL)
 		return true;
 #   endif
diff --git a/rijndael-simd.cpp b/rijndael-simd.cpp
index 871f6095..74b2e1b2 100644
--- a/rijndael-simd.cpp
+++ b/rijndael-simd.cpp
@@ -101,7 +101,7 @@ bool CPU_TryAES_ARMV8()
 	}
 	return result;
 # else
-#   if defined(__linux__)
+#   if defined(__linux__) && (defined(__aarch32__) || defined(__aarch64__))
 	if (getauxval(AT_HWCAP) & HWCAP_AES)
 		return true;
 #   endif
diff --git a/sha-simd.cpp b/sha-simd.cpp
index 7b8368a5..07ee69e1 100644
--- a/sha-simd.cpp
+++ b/sha-simd.cpp
@@ -85,7 +85,7 @@ bool CPU_TrySHA1_ARMV8()
 	}
 	return result;
 # else
-#   if defined(__linux__)
+#   if defined(__linux__) && (defined(__aarch32__) || defined(__aarch64__))
 	if (getauxval(AT_HWCAP) & HWCAP_SHA1)
 		return true;
 #   endif
@@ -148,7 +148,7 @@ bool CPU_TrySHA2_ARMV8()
 	}
 	return result;
 #else
-#   if defined(__linux__)
+#   if defined(__linux__) && (defined(__aarch32__) || defined(__aarch64__))
 	if (getauxval(AT_HWCAP) & HWCAP_SHA2)
 		return true;
 #   endif