diff --git a/source/src/physics.cpp b/source/src/physics.cpp
index 8d1acbcb..e5829b87 100644
--- a/source/src/physics.cpp
+++ b/source/src/physics.cpp
@@ -116,7 +116,7 @@ bool mmcollide(physent *d, float &hi, float &lo)           // collide with a map
         entity &e = ents[i];
         if(e.type==CLIP)
         {
-            const float r = max(float(e.attr2), 1.0f) + d->radius;
+            const float r = e.attr2 + d->radius;
             if(fabs(e.x-d->o.x)<r && fabs(e.y-d->o.y)<r)
             {
                 const float cz = float(S(e.x, e.y)->floor+e.attr1), ch = max(float(e.attr3), 1.0f);
diff --git a/source/src/world.cpp b/source/src/world.cpp
index 56f91635..8187d654 100644
--- a/source/src/world.cpp
+++ b/source/src/world.cpp
@@ -214,7 +214,7 @@ entity *newentity(int index, int x, int y, int z, char *what, int v1, int v2, in
     switch(type)
     {
         case CLIP:
-            if(v2<=0) e.attr2 = 1;
+            if(v2<0) e.attr2 = 0;
             if(v3<=0) e.attr3 = 1;
             break;