diff --git a/engines/glk/agt/token.cpp b/engines/glk/agt/token.cpp
index adece4f913b..3b3844041fe 100644
--- a/engines/glk/agt/token.cpp
+++ b/engines/glk/agt/token.cpp
@@ -94,7 +94,7 @@ static long ask_for_number(int n1, int n2) {
 		writestr(s);
 		n = read_number();
 		if (aver < AGX00)
-			n = (integer) n;
+			n = (integer) (n & 0xFFFF);
 		if (n1 == n2 || (n >= n1 && n <= n2)) return n;
 		writeln("");
 	}