diff --git a/package/wiringpi/Config.in b/package/wiringpi/Config.in
index 9275b82dd0..a292b3f5ff 100644
--- a/package/wiringpi/Config.in
+++ b/package/wiringpi/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_WIRINGPI
 	bool "wiringpi"
+	depends on BR2_USE_MMU # fork()
 	help
 	  wiringPi libraries (and gpio command)