diff --git a/RepositoryExternal.mk b/RepositoryExternal.mk
index ed00ea4a9dac..c7671a336466 100644
--- a/RepositoryExternal.mk
+++ b/RepositoryExternal.mk
@@ -3412,6 +3412,8 @@ $(call gb_LinkTarget_use_package,$(1),gpgme)
 
 endef
 
+ifeq ($(OS),LINUX)
+
 $(eval $(call gb_Helper_register_packages_for_install,ooo,\
 	gpgme \
 	libassuan \
@@ -3420,6 +3422,8 @@ $(eval $(call gb_Helper_register_packages_for_install,ooo,\
 
 endif
 
+endif
+
 ifeq ($(ENABLE_GLTF),TRUE)
 
 ifneq ($(SYSTEM_LIBGLTF),TRUE)