diff -r 4119185b56ca -r 1f15c52c11f6 src/toolsets/movetoolset.cpp
--- a/src/toolsets/movetoolset.cpp	Sat Jan 28 13:49:09 2017 +0200
+++ b/src/toolsets/movetoolset.cpp	Sat Jan 28 14:01:19 2017 +0200
@@ -35,8 +35,8 @@
 		return;
 
 	// If we move down, we need to iterate the array in reverse order.
-	int start = up ? 0 : (objs.size() - 1);
-	int end = up ? objs.size() : -1;
+	int start = up ? 0 : (length(objs) - 1);
+	int end = up ? length(objs) : -1;
 	int increment = up ? 1 : -1;
 	QSet<LDObject*> objsToCompile;
 	LDDocument* file = objs[0]->document();
@@ -48,7 +48,7 @@
 		int idx = obj->lineNumber();
 		int target = idx + (up ? -1 : 1);
 
-		if ((up and idx == 0) or (not up and idx == file->objects().size() - 1))
+		if ((up and idx == 0) or (not up and idx == length(file->objects()) - 1))
 		{
 			// One of the objects hit the extrema. If this happens, this should be the first
 			// object to be iterated on. Thus, nothing has changed yet and it's safe to just