diff --git a/lang/ruby/Makefile b/lang/ruby/Makefile
index a37d89f15..661b3e725 100644
--- a/lang/ruby/Makefile
+++ b/lang/ruby/Makefile
@@ -27,11 +27,13 @@ PKG_MAINTAINER:=Luiz Angelo Daros de Luca <luizluca@gmail.com>
 PKG_LICENSE:=BSD-2-Clause
 PKG_LICENSE_FILE:=COPYING
 
-PKG_BUILD_DEPENDS:=ruby/host gmp/host
+PKG_BUILD_DEPENDS:=ruby/host
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
 PKG_FIXUP:=autoreconf
 
+HOST_BUILD_DEPENDS:=gmp/host
+
 include $(INCLUDE_DIR)/host-build.mk
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/nls.mk