diff --git a/src/p_polyobj.c b/src/p_polyobj.c
index 60c653b16..cdcf37d9f 100644
--- a/src/p_polyobj.c
+++ b/src/p_polyobj.c
@@ -1042,6 +1042,10 @@ static void Polyobj_carryThings(polyobj_t *po, fixed_t dx, fixed_t dy)
 
 			for (; mo; mo = mo->bnext)
 			{
+				// lastlook is used by the SPB to determine targets, do not let it affect it
+				if (mo->type == MT_SPB)
+					continue;
+
 				if (mo->lastlook == pomovecount)
 					continue;
 
@@ -1286,6 +1290,10 @@ static void Polyobj_rotateThings(polyobj_t *po, vertex_t origin, angle_t delta,
 
 			for (; mo; mo = mo->bnext)
 			{
+				// lastlook is used by the SPB to determine targets, do not let it affect it
+				if (mo->type == MT_SPB)
+					continue;
+
 				if (mo->lastlook == pomovecount)
 					continue;