diff --git a/src/graphics/Renderer.cpp b/src/graphics/Renderer.cpp
index 0394bb113..6353cf30f 100644
--- a/src/graphics/Renderer.cpp
+++ b/src/graphics/Renderer.cpp
@@ -7,7 +7,6 @@
 #include "Misc.h"
 #include "Renderer.h"
 #include "Graphics.h"
-#include "common/tpt-math.h"
 #include "common/tpt-rand.h"
 #include "common/tpt-minmax.h"
 #include "gui/game/RenderPreset.h"
diff --git a/src/gui/preview/PreviewView.cpp b/src/gui/preview/PreviewView.cpp
index 7cfc5751e..425e729b5 100644
--- a/src/gui/preview/PreviewView.cpp
+++ b/src/gui/preview/PreviewView.cpp
@@ -17,7 +17,6 @@
 #include "gui/interface/AvatarButton.h"
 #include "gui/interface/Keys.h"
 #include "gui/dialogues/ErrorMessage.h"
-#include "common/tpt-math.h"
 #include "common/tpt-rand.h"
 
 class PreviewView::LoginAction: public ui::ButtonAction
diff --git a/src/simulation/Element.h b/src/simulation/Element.h
index 04707d55a..82b0f8d30 100644
--- a/src/simulation/Element.h
+++ b/src/simulation/Element.h
@@ -7,7 +7,6 @@
 #include "Gravity.h"
 #include "Misc.h"
 #include "Simulation.h"
-#include "common/tpt-math.h"
 #include "graphics/Renderer.h"
 
 #define IPL -257.0f
diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index 4053a6ef5..aeeff3dc7 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -19,7 +19,6 @@
 #include "ToolClasses.h"
 #include "client/GameSave.h"
 #include "common/tpt-compat.h"
-#include "common/tpt-math.h"
 #include "common/tpt-minmax.h"
 #include "common/tpt-rand.h"
 #include "gui/game/Brush.h"
diff --git a/src/simulation/simtools/Cyclone.cpp b/src/simulation/simtools/Cyclone.cpp
index dd7a30502..db97dde0c 100644
--- a/src/simulation/simtools/Cyclone.cpp
+++ b/src/simulation/simtools/Cyclone.cpp
@@ -1,6 +1,5 @@
 #include "ToolClasses.h"
 #include "simulation/Air.h"
-#include "common/tpt-math.h"
 
 
 //#TPT-Directive ToolClass Tool_Cycl TOOL_CYCL 7