diff --git a/docs/changelog.txt b/docs/changelog.txt
index 315f37841..4db2bbf77 100644
--- a/docs/changelog.txt
+++ b/docs/changelog.txt
@@ -53,6 +53,8 @@ Template for new versions:
 
 ## New Tools
 
+- `tubefill`: (reinstated) replenishes mined-out adamantine
+
 ## New Features
 
 ## Fixes
diff --git a/docs/plugins/tubefill.rst b/docs/plugins/tubefill.rst
index a8684c765..ff668f8df 100644
--- a/docs/plugins/tubefill.rst
+++ b/docs/plugins/tubefill.rst
@@ -3,9 +3,13 @@ tubefill
 
 .. dfhack-tool::
     :summary: Replenishes mined-out adamantine.
-    :tags: unavailable fort armok map
+    :tags: fort armok map
 
-Veins that were originally hollow will be left alone.
+This tool replaces mined-out tiles of adamantine spires with fresh, undug
+adamantine walls, ready to be re-harvested. Empty tiles within the spire that
+used to contain special gemstones, obsidian, water, or magma will also be
+replaced with fresh adamantine. Adamantine spires that were originally hollow
+will be left hollow. See below for more details.
 
 Usage
 -----
diff --git a/plugins/CMakeLists.txt b/plugins/CMakeLists.txt
index b96606284..bb2794011 100644
--- a/plugins/CMakeLists.txt
+++ b/plugins/CMakeLists.txt
@@ -167,7 +167,7 @@ if(BUILD_SUPPORTED)
     dfhack_plugin(tiletypes tiletypes.cpp Brushes.h LINK_LIBRARIES lua)
     #dfhack_plugin(title-folder title-folder.cpp)
     #dfhack_plugin(trackstop trackstop.cpp)
-    #dfhack_plugin(tubefill tubefill.cpp)
+    dfhack_plugin(tubefill tubefill.cpp)
     #add_subdirectory(tweak)
     dfhack_plugin(workflow workflow.cpp LINK_LIBRARIES lua)
     dfhack_plugin(work-now work-now.cpp)