diff --git a/ShellCheck/ASTLib.hs b/ShellCheck/ASTLib.hs
index 6e60618..23bbb98 100644
--- a/ShellCheck/ASTLib.hs
+++ b/ShellCheck/ASTLib.hs
@@ -112,8 +112,8 @@ getFlagsUntil _ _ = error "Internal shellcheck error, please report! (getFlags o
 
 -- Get all flags in a GNU way, up until --
 getAllFlags = getFlagsUntil (== "--")
--- Get all flags in a BSD way, up until first non-flag argument
-getLeadingFlags = getFlagsUntil (not . ("-" `isPrefixOf`))
+-- Get all flags in a BSD way, up until first non-flag argument or --
+getLeadingFlags = getFlagsUntil (\x -> x == "--" || (not $ "-" `isPrefixOf` x))
 
 
 -- Given a T_DollarBraced, return a simplified version of the string contents.
diff --git a/ShellCheck/Checks/ShellSupport.hs b/ShellCheck/Checks/ShellSupport.hs
index 7e1440b..6c66e50 100644
--- a/ShellCheck/Checks/ShellSupport.hs
+++ b/ShellCheck/Checks/ShellSupport.hs
@@ -133,6 +133,7 @@ prop_checkBashisms49= verify checkBashisms "#!/bin/dash\necho $MACHTYPE"
 prop_checkBashisms50= verify checkBashisms "#!/bin/sh\ncmd >& file"
 prop_checkBashisms51= verifyNot checkBashisms "#!/bin/sh\ncmd 2>&1"
 prop_checkBashisms52= verifyNot checkBashisms "#!/bin/sh\ncmd >&2"
+prop_checkBashisms53= verifyNot checkBashisms "#!/bin/sh\nprintf -- -f\n"
 checkBashisms = ForShell [Sh, Dash] $ \t -> do
     params <- ask
     kludge params t