diff --git a/package/openssl/Config.in b/package/openssl/Config.in
index daf76e7063..cf64240b34 100644
--- a/package/openssl/Config.in
+++ b/package/openssl/Config.in
@@ -40,6 +40,7 @@ source "package/libopenssl/Config.in"
 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)
 	help