diff --git a/src/utarray.h b/src/utarray.h
index 1fe8bc1..6336f59 100644
--- a/src/utarray.h
+++ b/src/utarray.h
@@ -1,4 +1,4 @@
-/*
+/*-
 Copyright (c) 2008-2022, Troy D. Hanson  https://troydhanson.github.io/uthash/
 All rights reserved.
 
diff --git a/src/uthash.h b/src/uthash.h
index 68693bf..010c7a4 100644
--- a/src/uthash.h
+++ b/src/uthash.h
@@ -1,4 +1,4 @@
-/*
+/*-
 Copyright (c) 2003-2022, Troy D. Hanson  https://troydhanson.github.io/uthash/
 All rights reserved.
 
diff --git a/src/utlist.h b/src/utlist.h
index 08fc59a..258d689 100644
--- a/src/utlist.h
+++ b/src/utlist.h
@@ -1,4 +1,4 @@
-/*
+/*-
 Copyright (c) 2007-2022, Troy D. Hanson  https://troydhanson.github.io/uthash/
 All rights reserved.
 
diff --git a/src/utringbuffer.h b/src/utringbuffer.h
index 6034117..e0c8794 100644
--- a/src/utringbuffer.h
+++ b/src/utringbuffer.h
@@ -1,4 +1,4 @@
-/*
+/*-
 Copyright (c) 2015-2022, Troy D. Hanson  https://troydhanson.github.io/uthash/
 All rights reserved.
 
diff --git a/src/utstack.h b/src/utstack.h
index 94b8c51..2f97faa 100644
--- a/src/utstack.h
+++ b/src/utstack.h
@@ -1,4 +1,4 @@
-/*
+/*-
 Copyright (c) 2018-2022, Troy D. Hanson  https://troydhanson.github.io/uthash/
 All rights reserved.
 
diff --git a/src/utstring.h b/src/utstring.h
index f0270fb..12fd019 100644
--- a/src/utstring.h
+++ b/src/utstring.h
@@ -1,4 +1,4 @@
-/*
+/*-
 Copyright (c) 2008-2022, Troy D. Hanson  https://troydhanson.github.io/uthash/
 All rights reserved.