diff --git a/package/openssl/Config.in b/package/openssl/Config.in
index 7bf49b05f6..c7641ecefa 100644
--- a/package/openssl/Config.in
+++ b/package/openssl/Config.in
@@ -34,8 +34,8 @@ config BR2_PACKAGE_LIBRESSL
 	bool "libressl"
 	depends on !BR2_PACKAGE_OPENSSL_FORCE_LIBOPENSSL
 	depends on BR2_TOOLCHAIN_HAS_THREADS
-	# uClibc on noMMU doesn't provide __register_atfork()
-	depends on !(BR2_TOOLCHAIN_USES_UCLIBC && !BR2_USE_MMU)
+	# uClibc doesn't provide __register_atfork() without NPTL
+	depends on !BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	help
 	  LibreSSL is a version of the TLS/crypto stack forked from
 	  OpenSSL in 2014, with goals of modernizing the codebase,