diff --git a/oldheaders/Makefile.am b/oldheaders/Makefile.am
new file mode 100644
index 0000000000..2dd570c5f0
--- /dev/null
+++ b/oldheaders/Makefile.am
@@ -0,0 +1,2 @@
+kwin_kwinincludedir = $(includedir)/kwin
+kwin_kwininclude_HEADERS = options.h client.h workspace.h kwinbutton.h
diff --git a/oldheaders/client.h b/oldheaders/client.h
new file mode 100644
index 0000000000..89db145b23
--- /dev/null
+++ b/oldheaders/client.h
@@ -0,0 +1,4 @@
+#error The KWin decorations API provided by this header file is obsolete.
+#error All code using it will have to be ported to the new KDecoration API.
+
+// See kdebase/kwin/clients/PORTING .
diff --git a/oldheaders/kwinbutton.h b/oldheaders/kwinbutton.h
new file mode 100644
index 0000000000..89db145b23
--- /dev/null
+++ b/oldheaders/kwinbutton.h
@@ -0,0 +1,4 @@
+#error The KWin decorations API provided by this header file is obsolete.
+#error All code using it will have to be ported to the new KDecoration API.
+
+// See kdebase/kwin/clients/PORTING .
diff --git a/oldheaders/options.h b/oldheaders/options.h
new file mode 100644
index 0000000000..89db145b23
--- /dev/null
+++ b/oldheaders/options.h
@@ -0,0 +1,4 @@
+#error The KWin decorations API provided by this header file is obsolete.
+#error All code using it will have to be ported to the new KDecoration API.
+
+// See kdebase/kwin/clients/PORTING .
diff --git a/oldheaders/workspace.h b/oldheaders/workspace.h
new file mode 100644
index 0000000000..89db145b23
--- /dev/null
+++ b/oldheaders/workspace.h
@@ -0,0 +1,4 @@
+#error The KWin decorations API provided by this header file is obsolete.
+#error All code using it will have to be ported to the new KDecoration API.
+
+// See kdebase/kwin/clients/PORTING .