diff --git a/plugins/tweak.cpp b/plugins/tweak.cpp
index d54c4a5ec..8488ba3e8 100644
--- a/plugins/tweak.cpp
+++ b/plugins/tweak.cpp
@@ -34,7 +34,8 @@
 #include "df/ui_build_selector.h"
 #include "df/building_trapst.h"
 #include "df/item_actual.h"
-#include "df/item_liquipowder.h"
+#include "df/item_liquid_miscst.h"
+#include "df/item_powder_miscst.h"
 #include "df/item_barst.h"
 #include "df/item_threadst.h"
 #include "df/item_clothst.h"
@@ -402,8 +403,8 @@ static void correct_dimension(df::item_actual *self, int32_t &delta, int32_t dim
     if (copy) copy->categorize(true);
 }
 
-struct dimension_lqp_hook : df::item_liquipowder {
-    typedef df::item_liquipowder interpose_base;
+struct dimension_liquid_hook : df::item_liquid_miscst {
+    typedef df::item_liquid_miscst interpose_base;
 
     DEFINE_VMETHOD_INTERPOSE(bool, subtractDimension, (int32_t delta))
     {
@@ -412,7 +413,19 @@ struct dimension_lqp_hook : df::item_liquipowder {
     }
 };
 
-IMPLEMENT_VMETHOD_INTERPOSE(dimension_lqp_hook, subtractDimension);
+IMPLEMENT_VMETHOD_INTERPOSE(dimension_liquid_hook, subtractDimension);
+
+struct dimension_powder_hook : df::item_powder_miscst {
+    typedef df::item_powder_miscst interpose_base;
+
+    DEFINE_VMETHOD_INTERPOSE(bool, subtractDimension, (int32_t delta))
+    {
+        correct_dimension(this, delta, dimension);
+        return INTERPOSE_NEXT(subtractDimension)(delta);
+    }
+};
+
+IMPLEMENT_VMETHOD_INTERPOSE(dimension_powder_hook, subtractDimension);
 
 struct dimension_bar_hook : df::item_barst {
     typedef df::item_barst interpose_base;
@@ -795,7 +808,8 @@ static command_result tweak(color_ostream &out, vector <string> &parameters)
     }
     else if (cmd == "fix-dimensions")
     {
-        enable_hook(out, INTERPOSE_HOOK(dimension_lqp_hook, subtractDimension), parameters);
+        enable_hook(out, INTERPOSE_HOOK(dimension_liquid_hook, subtractDimension), parameters);
+        enable_hook(out, INTERPOSE_HOOK(dimension_powder_hook, subtractDimension), parameters);
         enable_hook(out, INTERPOSE_HOOK(dimension_bar_hook, subtractDimension), parameters);
         enable_hook(out, INTERPOSE_HOOK(dimension_thread_hook, subtractDimension), parameters);
         enable_hook(out, INTERPOSE_HOOK(dimension_cloth_hook, subtractDimension), parameters);