diff --git a/package/transmission/Config.in b/package/transmission/Config.in
index 92840753a2..30314f74f5 100644
--- a/package/transmission/Config.in
+++ b/package/transmission/Config.in
@@ -2,6 +2,7 @@ config BR2_PACKAGE_TRANSMISSION
 	bool "transmission"
 	depends on BR2_INET_IPV6
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_USE_MMU # fork()
 	select BR2_PACKAGE_ZLIB
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_LIBCURL