diff --git a/aim-kit/README b/aim-kit/README
index 20798a1f4fb29d1a7ef7bc2fc038175674c5945d..e338768f4b730903822ccafef9debc83147b3b47 100644
--- a/aim-kit/README
+++ b/aim-kit/README
@@ -6,7 +6,9 @@ The test images are not part of the repository, download them separately at
 
 The most interesting file is exercise.c, which is to provide the exercise()
 routine that performs the appropriate image transformation.  When submitting
-your solution, send ONLY THE FILE exercise.c to <aim@ucw.cz>.
+your solution, submit ONLY THE FILE exercise.c (with exercise() function,
+without any main()) using aim-submit. To test, run aim-test TASK exercise.c
+inside aim-kit directory with your exercise.c.
 
 Run `make` to build the binary executable: this will create two files:
 
@@ -25,4 +27,4 @@ To get annotated assembly source, run `make exercise.s`.
 
 In order to benchmark your code the same way we will, run `make benchmark`.
 This will internally run your subroutine multiple times in row on the same
-image, however you must not take advantage of this in your code.
+image, however you must not take advantage of this in your code.
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