diff --git a/sys/crypto/aesni/aesni.c b/sys/crypto/aesni/aesni.c
index 372c56211cf..3b6c617d2c1 100644
--- a/sys/crypto/aesni/aesni.c
+++ b/sys/crypto/aesni/aesni.c
@@ -116,8 +116,7 @@ detect_cpu_features(bool *has_aes, bool *has_sha)
 
 	*has_aes = ((cpu_feature2 & CPUID2_AESNI) != 0 &&
 	    (cpu_feature2 & CPUID2_SSE41) != 0);
-	*has_sha = ((cpu_stdext_feature & CPUID_STDEXT_SHA) != 0 &&
-	    (cpu_feature2 & CPUID2_SSSE3) != 0);
+	*has_sha = false;
 }
 
 static int