diff --git a/collects/handin-server/checker.ss b/collects/handin-server/checker.ss
index 754f1f329d..ee6849132f 100644
--- a/collects/handin-server/checker.ss
+++ b/collects/handin-server/checker.ss
@@ -361,6 +361,7 @@
            ([users*         (get ':users         #'#f)]
             [eval?*         (get ':eval?         #'#t)]
             [language*      (get ':language      #'#f)]
+            [requires*      (get ':requires      #''())]
             [teachpacks*    (get ':teachpacks    #''())]
             [create-text?*  (get ':create-text?  #'#t)]
             [untabify?*     (get ':untabify?     #'#t)]
@@ -406,6 +407,7 @@
                                   us))]
                      [eval?          eval?*]
                      [language       language*]
+                     [requires       requires*]
                      [teachpacks     teachpacks*]
                      [create-text?   create-text?*]
                      [untabify?      untabify?*]
@@ -509,7 +511,8 @@
                                           (error* uem m)]
                                          [else (error* "~a" uem)])))])
                                (call-with-evaluator/submission
-                                language teachpacks submission values))])
+                                language (append requires teachpacks)
+                                submission values))])
                         (set-run-status "running tests")
                         (parameterize ([submission-eval (wrap-evaluator eval)])
                           (let-syntax ([with-submission-bindings
@@ -537,6 +540,8 @@
                                    "`untabify?' without `maxwidth'"]
                                   [(and (not eval?) coverage?)
                                    "`coverage?' without `eval?'"]
+                                  [(and (pair? requires) (pair? teachpacks))
+                                   "`requires' and `teachpacks'"]
                                   ;; [(and textualize? coverage?)
                                   ;;  "`textualize?' and `coverage?'"]
                                   [else #f])])
diff --git a/collects/handin-server/scribblings/checker.scrbl b/collects/handin-server/scribblings/checker.scrbl
index 8541676384..450eef6be7 100644
--- a/collects/handin-server/scribblings/checker.scrbl
+++ b/collects/handin-server/scribblings/checker.scrbl
@@ -66,10 +66,14 @@ Keywords for configuring @scheme[check:]:
   There is no default for this, so it must be set or an error is
   raised.}
 
-@item{@indexed-scheme[:teachpacks]---teachpacks for evaluating
-  submissions, same as the @scheme[_teachpacks] argument for
-  @scheme[make-evaluator] (see @schememodname[handin-server/sandbox]).
-  This defaults to null---no teachpacks.}
+@item{@indexed-scheme[:requires]---paths for additional libraries to
+  require for evaluating the submission, same as the
+  @scheme[_requires] argument for @scheme[make-evaluator] (see
+  @schememodname[handin-server/sandbox]).  This defaults to null---no
+  teachpacks.}
+
+@item{@indexed-scheme[:teachpacks]---an alternative name for
+  @scheme[:requires], kept for legacy checkers.}
 
 @item{@indexed-scheme[:create-text?]---if true, then a textual version
   of the submission is saved as @filepath{text.scm} in a
diff --git a/collects/handin-server/scribblings/utils.scrbl b/collects/handin-server/scribblings/utils.scrbl
index 79cb7f7ca5..ab1c357e75 100644
--- a/collects/handin-server/scribblings/utils.scrbl
+++ b/collects/handin-server/scribblings/utils.scrbl
@@ -22,7 +22,7 @@
           [language (or/c module-path?
                           (list/c (one-of/c 'special) symbol?)
                           (cons/c (one-of/c 'begin) list?))]
-          [teachpack-paths (listof path-string?)]
+          [require-paths (listof path-string?)]
           [content bytes?])
          (any/c . -> . any)]{
 
@@ -34,7 +34,7 @@
           [language (or/c module-path?
                           (list/c (one-of/c 'special) symbol?)
                           (cons/c (one-of/c 'begin) list?))]
-          [teachpack-paths (listof path-string?)]
+          [require-paths (listof path-string?)]
           [input-program any/c]
           [proc (any/c . -> . any)])
          any]{
@@ -52,7 +52,7 @@
           (or/c module-path?
                 (list/c (one-of/c 'special) symbol?)
                 (cons/c (one-of/c 'begin) list?))]
-          [teachpack-paths (listof path-string?)]
+          [require-paths (listof path-string?)]
           [submission bytes?]
           [proc (any/c . -> . any)])
          any]{
diff --git a/collects/handin-server/utils.ss b/collects/handin-server/utils.ss
index 27faef70e2..be4a3548f2 100644
--- a/collects/handin-server/utils.ss
+++ b/collects/handin-server/utils.ss
@@ -52,9 +52,10 @@
   (let ([inp (open-input-text-editor str)])
     (port-count-lines! inp) inp))
 
-(define (make-evaluator/submission language teachpacks str)
+(define (make-evaluator/submission language requires str)
   (let-values ([(defs interacts) (unpack-submission str)])
-    (make-evaluator language teachpacks (open-input-text-editor defs))))
+    (make-evaluator language #:requires requires
+                    (open-input-text-editor defs))))
 
 (define (evaluate-all source port eval)
   (let loop ()
@@ -160,17 +161,17 @@
       (regexp-replace #rx"\n$" (get-output-string p) ""))))
 (define current-value-printer (make-parameter default-value-printer))
 
-(define (call-with-evaluator lang teachpacks program-port go)
+(define (call-with-evaluator lang requires program-port go)
   (parameterize ([error-value->string-handler (lambda (v s)
                                                 ((current-value-printer) v))]
                  [list-abbreviation-enabled (not (or (eq? lang 'beginner)
                                                      (eq? lang 'beginner-abbr)))])
     (reraise-exn-as-submission-problem
      (lambda ()
-       (let ([e (make-evaluator lang #:requires teachpacks program-port)])
+       (let ([e (make-evaluator lang #:requires requires program-port)])
          (set-run-status "executing your code")
          (go e))))))
 
-(define (call-with-evaluator/submission lang teachpacks str go)
+(define (call-with-evaluator/submission lang requires str go)
   (let-values ([(defs interacts) (unpack-submission str)])
-    (call-with-evaluator lang teachpacks (open-input-text-editor defs) go)))
+    (call-with-evaluator lang requires (open-input-text-editor defs) go)))