diff --git a/pkg/wolfssl/Makefile.dep b/pkg/wolfssl/Makefile.dep
index 9352cdb326..eaa49bff4b 100644
--- a/pkg/wolfssl/Makefile.dep
+++ b/pkg/wolfssl/Makefile.dep
@@ -82,3 +82,6 @@ endif
 ifneq (,$(filter wolfcrypt_random,$(USEMODULE)))
   USEMODULE += random
 endif
+
+# wolfssl is only supported by 32 bit architectures
+FEATURES_REQUIRED += arch_32bit