diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # ShellCheck - A shell script static analysis tool
 
-ShellCheck is a GPLv3 tool that gives warnings and suggestions for bash/sh shell scripts:
+ShellCheck is a GPLv3 tool that gives warnings and suggestions for bash/sh/dash/ash/ksh shell scripts:
 
 ![Screenshot of a terminal showing problematic shell script lines highlighted](doc/terminal.png).