diff --git a/collects/drscheme/private/bitmap-message.ss b/collects/drscheme/private/bitmap-message.ss
index 10ca5a9339..e3683e7472 100644
--- a/collects/drscheme/private/bitmap-message.ss
+++ b/collects/drscheme/private/bitmap-message.ss
@@ -16,4 +16,4 @@
       (min-width (send bm get-width))
       (min-height (send bm get-height)))
     (super-new (stretchable-width #f)
-               (stretchable-height #f))))
\ No newline at end of file
+               (stretchable-height #f))))
diff --git a/collects/drscheme/private/mred-typed.ss b/collects/drscheme/private/mred-typed.ss
index 5252df47ac..3d1c8cc405 100644
--- a/collects/drscheme/private/mred-typed.ss
+++ b/collects/drscheme/private/mred-typed.ss
@@ -97,7 +97,7 @@
 (define-type-alias Bitmap-Message% (Class () 
                                           ([parent Any])
                                           ([set-bm ((Instance Bitmap%) -> Void)])))
-               
+
 
 (require/typed "bitmap-message.ss"
-               [bitmap-message% Bitmap-Message%])
\ No newline at end of file
+               [bitmap-message% Bitmap-Message%])
diff --git a/collects/drscheme/private/prefs-contract.ss b/collects/drscheme/private/prefs-contract.ss
index cb648dd533..dd62fb14d3 100644
--- a/collects/drscheme/private/prefs-contract.ss
+++ b/collects/drscheme/private/prefs-contract.ss
@@ -13,4 +13,4 @@
   (syntax-case stx (quote)
     [(_ (quote sym))
      (with-syntax ([nm (datum->syntax stx (string->symbol (string-append "preferences:get" "-" (symbol->string (syntax-e #'sym)))))])
-       (syntax/loc stx (nm)))]))
\ No newline at end of file
+       (syntax/loc stx (nm)))]))