diff --git a/emtest/READ_ME b/emtest/READ_ME
index e447e4afd..021ae77fd 100644
--- a/emtest/READ_ME
+++ b/emtest/READ_ME
@@ -23,6 +23,10 @@ A program, called "select", is provided to combine a range of tests
 into a single test program.
 "Select" expects a range as argument, like 0-127, or -127, or 0-.
 Tests that have a TEST number in that range are included.
+"Select" also expects the file from which the tests should
+be selected as an argument.
+If no argument is given, or only a range argument, select expects
+the tests to slect from on standard input.
 
 To prevent name clashes, some rules must be obeyed:
    - data label names, procedure names and instruction label numbers
@@ -79,7 +83,7 @@ This is useful if 'nop' prints the 'fil' string as well as the 'lin' number.
 This 'f' option is on by default, off if a '-f' flag is given.
 
 The EM file generated by "select" includes "test.h".
-"Emtest.h" may contain definitions of the following symbols:
+"test.h" may contain definitions of the following symbols:
 	W2S:	the size of double precision integers, if implemented.
 	FS:	the size of single precision floats, if implemented.
 	F2S:	the size of double precision floats, if implemented.