diff --git a/src/tools/pcb_reader/nav/TiledNavmeshGenerator.cpp b/src/tools/pcb_reader/nav/TiledNavmeshGenerator.cpp
index 5b3be0ab..3fa19668 100644
--- a/src/tools/pcb_reader/nav/TiledNavmeshGenerator.cpp
+++ b/src/tools/pcb_reader/nav/TiledNavmeshGenerator.cpp
@@ -89,6 +89,11 @@ TiledNavmeshGenerator::~TiledNavmeshGenerator()
 {
   delete m_mesh;
   delete m_chunkyMesh;
+
+  delete m_ctx;
+
+  dtFreeNavMesh( m_navMesh );
+  dtFreeNavMeshQuery( m_navQuery );
 }
 
 void TiledNavmeshGenerator::saveNavmesh( const std::string& name )