diff --git a/doomsday/client/src/world/bsp/convexsubspace.cpp b/doomsday/client/src/world/bsp/convexsubspace.cpp
index a1d8dd0e87..333cb16f8e 100644
--- a/doomsday/client/src/world/bsp/convexsubspace.cpp
+++ b/doomsday/client/src/world/bsp/convexsubspace.cpp
@@ -74,7 +74,12 @@ struct Continuity
     OrderedSegmentList discordSegs;
 
     Continuity(Sector *sector)
-        : sector(sector), coverage(0), discordSegments(0)
+        : sector(sector),
+          coverage(0),
+          discordSegments(0),
+          norm(0),
+          part(0),
+          self(0)
     {}
 
     /**
diff --git a/doomsday/client/src/world/p_mobj.cpp b/doomsday/client/src/world/p_mobj.cpp
index b8edb990ac..372f51ea18 100644
--- a/doomsday/client/src/world/p_mobj.cpp
+++ b/doomsday/client/src/world/p_mobj.cpp
@@ -108,6 +108,7 @@ mobj_t *P_MobjCreate(thinkfunc_t function, coord_t const pos[3], angle_t angle,
     mo->radius = radius;
     mo->height = height;
     mo->ddFlags = ddflags;
+    mo->lumIdx = -1;
     mo->thinker.function = function;
     if(mo->thinker.function)
     {