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-rw-r--r--doc/lua_api.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index e2abcbfe7..bee247ca9 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -584,6 +584,8 @@ Special groups
dropped as an item. If the node is wallmounted the
wallmounted direction is checked.
- soil: saplings will grow on nodes in this group
+- connect_to_raillike: makes nodes of raillike drawtype connect to
+ other group members with same drawtype
Known damage and digging time defining groups
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