diff -r b212ee44f87c -r c2465b429e6e src/HOL/Analysis/Starlike.thy
--- a/src/HOL/Analysis/Starlike.thy	Mon Nov 04 17:59:32 2019 -0500
+++ b/src/HOL/Analysis/Starlike.thy	Mon Nov 04 19:53:43 2019 -0500
@@ -8,7 +8,10 @@
 chapter \<open>Unsorted\<close>
 
 theory Starlike
-imports Convex_Euclidean_Space Abstract_Limits
+  imports
+    Convex_Euclidean_Space
+    Abstract_Limits
+    Line_Segment
 begin
 
 subsection\<open>Starlike sets\<close>