diff --git a/doomsday/client/src/map/bspleaf.cpp b/doomsday/client/src/map/bspleaf.cpp
index cc9d2ed33d..e8bf767410 100644
--- a/doomsday/client/src/map/bspleaf.cpp
+++ b/doomsday/client/src/map/bspleaf.cpp
@@ -49,10 +49,12 @@ BspLeaf::~BspLeaf()
 {
     if(bsuf)
     {
+#ifdef __CLIENT__
         for(uint i = 0; i < sector->planeCount; ++i)
         {
             SB_DestroySurface(bsuf[i]);
         }
+#endif
         Z_Free(bsuf);
     }
 
@@ -99,6 +101,7 @@ biassurface_t* BspLeaf_BiasSurfaceForGeometryGroup(BspLeaf* leaf, uint groupId)
 {
     DENG2_ASSERT(leaf);
     if(!leaf->sector || groupId > leaf->sector->planeCount) return NULL;
+    DENG2_ASSERT(leaf->bsuf != 0);
     return leaf->bsuf[groupId];
 }
 
diff --git a/doomsday/client/src/map/hedge.cpp b/doomsday/client/src/map/hedge.cpp
index 939e4a2d61..5a5bf8f0ff 100644
--- a/doomsday/client/src/map/hedge.cpp
+++ b/doomsday/client/src/map/hedge.cpp
@@ -50,6 +50,7 @@ HEdge::HEdge(HEdge const &other) : de::MapElement(DMU_HEDGE)
 
 HEdge::~HEdge()
 {
+#ifdef __CLIENT__
     for(uint i = 0; i < 3; ++i)
     {
         if(bsuf[i])
@@ -57,6 +58,7 @@ HEdge::~HEdge()
             SB_DestroySurface(bsuf[i]);
         }
     }
+#endif
 }
 
 coord_t WallDivNode_Height(walldivnode_t* node)
diff --git a/doomsday/client/src/map/p_data.cpp b/doomsday/client/src/map/p_data.cpp
index 359bbafa90..7d32c57a38 100644
--- a/doomsday/client/src/map/p_data.cpp
+++ b/doomsday/client/src/map/p_data.cpp
@@ -147,12 +147,12 @@ DENG_EXTERN_C boolean P_LoadMap(char const* uriCString)
         // Init the thinker lists (public and private).
         GameMap_InitThinkerLists(map, 0x1 | 0x2);
 
-        // Tell shadow bias to initialize the bias light sources.
-        SB_InitForMap(GameMap_OldUniqueId(map));
-
         GameMap_ClMobjReset(map);
 
 #ifdef __CLIENT__
+        // Tell shadow bias to initialize the bias light sources.
+        SB_InitForMap(GameMap_OldUniqueId(map));
+
         // Clear player data, too, since we just lost all clmobjs.
         Cl_InitPlayers();
 
diff --git a/doomsday/client/src/map/p_polyobjs.cpp b/doomsday/client/src/map/p_polyobjs.cpp
index 9d0eef1d22..2d1f9cbfec 100644
--- a/doomsday/client/src/map/p_polyobjs.cpp
+++ b/doomsday/client/src/map/p_polyobjs.cpp
@@ -45,11 +45,13 @@ void P_PolyobjChanged(Polyobj* po)
         HEdge* hedge = line->L_frontside.hedgeLeft;
         int i;
 
+#ifdef __CLIENT__
         // Shadow bias must be told.
         for(i = 0; i < 3; ++i)
         {
             SB_SurfaceMoved(hedge->bsuf[i]);
         }
+#endif
     }
 }
 
diff --git a/doomsday/client/src/map/r_world.cpp b/doomsday/client/src/map/r_world.cpp
index 0fa3ff6f8e..e5774f767a 100644
--- a/doomsday/client/src/map/r_world.cpp
+++ b/doomsday/client/src/map/r_world.cpp
@@ -392,6 +392,7 @@ Plane *R_NewPlaneForSector(Sector *sec)
                     newList[n] = bspLeaf->bsuf[n];
                 }
                 Z_Free(bspLeaf->bsuf);
+                bspLeaf->bsuf = 0;
             }
 
             if(!ddMapSetup)
@@ -463,16 +464,19 @@ void R_DestroyPlaneOfSector(uint id, Sector *sec)
     // If this plane's surface is in the glowing list, remove it.
     R_SurfaceListRemove(GameMap_GlowingSurfaces(theMap), &plane->surface);
 
+#ifdef __CLIENT__
     // Destroy the biassurfaces for this plane.
     for(BspLeaf **bspLeafIter = sec->bspLeafs; *bspLeafIter; bspLeafIter++)
     {
         BspLeaf *bspLeaf = *bspLeafIter;
+        DENG2_ASSERT(bspLeaf->bsuf != 0);
         SB_DestroySurface(bspLeaf->bsuf[id]);
         if(id < sec->planeCount)
         {
             std::memmove(bspLeaf->bsuf + id, bspLeaf->bsuf + id + 1, sizeof(biassurface_t *));
         }
     }
+#endif // __CLIENT__
 
     // Destroy the specified plane.
     delete plane;
@@ -1566,6 +1570,7 @@ boolean R_UpdatePlane(Plane *pln, boolean forceUpdate)
             }
         }
 
+#ifdef __CLIENT__
         // Inform the shadow bias of changed geometry.
         if(sec->bspLeafs && *sec->bspLeafs)
         {
@@ -1591,6 +1596,7 @@ boolean R_UpdatePlane(Plane *pln, boolean forceUpdate)
                 SB_SurfaceMoved(bspLeaf->bsuf[pln->planeID]);
             }
         }
+#endif // __CLIENT__
 
         // We need the decorations updated.
         Surface_Update(&pln->surface);
diff --git a/doomsday/client/src/render/rend_bias.cpp b/doomsday/client/src/render/rend_bias.cpp
index 445f01e969..c6bf3d525f 100644
--- a/doomsday/client/src/render/rend_bias.cpp
+++ b/doomsday/client/src/render/rend_bias.cpp
@@ -424,6 +424,7 @@ void SB_InitForMap(const char* uniqueID)
                     bsuf->illum = illums;
                     illums += bsuf->size;
 
+                    DENG2_ASSERT(leaf->bsuf != 0);
                     leaf->bsuf[j] = bsuf;
                 }
             }
diff --git a/doomsday/server/include/server_dummies.h b/doomsday/server/include/server_dummies.h
index e2100b3b1b..d4f48e03ec 100644
--- a/doomsday/server/include/server_dummies.h
+++ b/doomsday/server/include/server_dummies.h
@@ -151,10 +151,6 @@ DENG_EXTERN_C void Models_Init();
 DENG_EXTERN_C void Models_Shutdown();
 DENG_EXTERN_C void Models_CacheForState(int stateIndex);
 
-DENG_EXTERN_C void SB_InitForMap(const char* uniqueID);
-DENG_EXTERN_C void SB_SurfaceMoved(biassurface_t* bsuf);
-DENG_EXTERN_C void SB_DestroySurface(struct biassurface_s* bsuf);
-
 DENG_EXTERN_C void LG_SectorChanged(Sector* sector);
 
 DENG_EXTERN_C void Cl_InitPlayers(void);
diff --git a/doomsday/server/src/server_dummies.cpp b/doomsday/server/src/server_dummies.cpp
index 6917ab5d7a..9898e78ee5 100644
--- a/doomsday/server/src/server_dummies.cpp
+++ b/doomsday/server/src/server_dummies.cpp
@@ -591,21 +591,6 @@ void Models_CacheForState(int stateIndex)
     DENG_UNUSED(stateIndex);
 }
 
-void SB_InitForMap(const char* uniqueID)
-{
-    DENG_UNUSED(uniqueID);
-}
-
-void SB_SurfaceMoved(biassurface_t* bsuf)
-{
-    DENG_UNUSED(bsuf);
-}
-
-void SB_DestroySurface(struct biassurface_s* bsuf)
-{
-    DENG_UNUSED(bsuf);
-};
-
 void LG_SectorChanged(Sector* sector)
 {
     DENG_UNUSED(sector);