diff --git a/include/PrimeTower.h b/include/PrimeTower.h
index 4de22dfa57..fe74d09ec6 100644
--- a/include/PrimeTower.h
+++ b/include/PrimeTower.h
@@ -77,8 +77,6 @@ class PrimeTower
      */
     PrimeTower();
 
-    void initializeExtruders(const std::vector<bool>& used_extruders);
-
     /*!
      * Check whether we actually use the prime tower.
      */
diff --git a/src/FffPolygonGenerator.cpp b/src/FffPolygonGenerator.cpp
index e7baf8e0a2..58e6ef5a9d 100644
--- a/src/FffPolygonGenerator.cpp
+++ b/src/FffPolygonGenerator.cpp
@@ -405,8 +405,6 @@ void FffPolygonGenerator::slices2polygons(SliceDataStorage& storage, TimeKeeper&
 
     Progress::messageProgressStage(Progress::Stage::SUPPORT, &time_keeper);
 
-    storage.primeTower.initializeExtruders(storage.getExtrudersUsed());
-
     AreaSupport::generateOverhangAreas(storage);
     AreaSupport::generateSupportAreas(storage);
     TreeSupport tree_support_generator(storage);