diff --git a/collects/compatibility/defmacro.rkt b/collects/compatibility/defmacro.rkt
index 9a9594b..ca92215 100644
--- a/collects/compatibility/defmacro.rkt
+++ b/collects/compatibility/defmacro.rkt
@@ -133,4 +133,4 @@
                [else v])))))))
 
 ;; this require has to be here after the submodule
-(require (for-syntax 'dmhelp))
\ No newline at end of file
+(require (for-syntax 'dmhelp))
diff --git a/collects/mzlib/integer-set.rkt b/collects/mzlib/integer-set.rkt
index 1511278..732e342 100644
--- a/collects/mzlib/integer-set.rkt
+++ b/collects/mzlib/integer-set.rkt
@@ -9,4 +9,4 @@
                      count)
          (rename-out [subtract difference]
                      [symmetric-difference xor]
-                     [count card]))
\ No newline at end of file
+                     [count card]))
diff --git a/collects/mzlib/process.rkt b/collects/mzlib/process.rkt
index ed07ddc..9f287ee 100644
--- a/collects/mzlib/process.rkt
+++ b/collects/mzlib/process.rkt
@@ -3,4 +3,4 @@
 ;; deprecated library, see `racket/system`
 
 (require racket/system)
-(provide (all-from-out racket/system))
\ No newline at end of file
+(provide (all-from-out racket/system))