diff --git a/exercises/zebra-puzzle/introduction.md b/exercises/zebra-puzzle/introduction.md
index c8b7ef751e..33d688fd51 100644
--- a/exercises/zebra-puzzle/introduction.md
+++ b/exercises/zebra-puzzle/introduction.md
@@ -10,5 +10,6 @@ However, only by combining the information in _all_ statements will you be able
 The Zebra Puzzle is a [Constraint satisfaction problem (CSP)][constraint-satisfaction-problem].
 In such a problem, you have a set of possible values and a set of constraints that limit which values are valid.
 Another well-known CSP is Sudoku.
+
 [constraint-satisfaction-problem]: https://en.wikipedia.org/wiki/Constraint_satisfaction_problem
 ~~~~