diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index 1b9a85928..7c8241944 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -4232,6 +4232,8 @@ Simulation::~Simulation()
 	delete[] platent;
 	delete grav;
 	delete air;
+	for(int i = 0; i < tools.size(); i++)
+		delete tools[i];
 }
 
 Simulation::Simulation():