diff --git a/src/graphics/material.cpp b/src/graphics/material.cpp
index 1655be961..e0ac0d1bf 100644
--- a/src/graphics/material.cpp
+++ b/src/graphics/material.cpp
@@ -56,8 +56,7 @@ Material::Material(const XMLNode *node, int index)
     node->get("ignore",           &m_ignore            );
     node->get("zipper",           &m_zipper            );
     node->get("reset",            &m_resetter          );
-    node->get("collide",          &m_collideable       );
-    node->get("maxSpeed",         &m_max_speed_fraction);
+    node->get("max-speed",        &m_max_speed_fraction);
     node->get("slowdown",         &m_slowdown          );
     std::string s("");
     node->get("graphical-effect", &s                   );
@@ -105,7 +104,6 @@ void Material::init(unsigned int index)
     m_ignore             = false;
     m_zipper             = false;
     m_resetter           = false;
-    m_collideable        = true;
     m_max_speed_fraction = 1.0f;
     m_slowdown           = 1.0f;
     m_graphical_effect   = GE_NONE;
diff --git a/src/graphics/material.hpp b/src/graphics/material.hpp
index 7159d39ec..c0900fb0b 100644
--- a/src/graphics/material.hpp
+++ b/src/graphics/material.hpp
@@ -37,7 +37,6 @@ private:
     unsigned int     m_index;
     std::string      m_texname;
     GraphicalEffect  m_graphical_effect;
-    bool             m_collideable;
     bool             m_zipper;
     bool             m_resetter;
     bool             m_ignore;
@@ -66,7 +65,6 @@ public:
     bool  isIgnore           () const { return m_ignore;             }
     bool  isZipper           () const { return m_zipper;             }
     bool  isSphereMap        () const { return m_sphere_map;         }
-    bool  isCrashable        () const { return m_collideable;        }
     bool  isReset            () const { return m_resetter;           }
     float getFriction        () const { return m_friction;           }
     const std::string&