diff --git a/package/openldap/Config.in b/package/openldap/Config.in
index be2cbdce5c..1f0b1eabc3 100644
--- a/package/openldap/Config.in
+++ b/package/openldap/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_OPENLDAP
 	bool "openldap"
 	depends on BR2_USE_WCHAR
+	depends on BR2_USE_MMU # needs fork()
 	help
 	  OpenLDAP Software is an open source implementation of
 	  the Lightweight Directory Access Protocol.
@@ -10,4 +11,5 @@ config BR2_PACKAGE_OPENLDAP
 	  http://www.openldap.org/
 
 comment "openldap needs a toolchain w/ wchar"
+	depends on BR2_USE_MMU # needs fork()
 	depends on !BR2_USE_WCHAR