diff --git a/config.def.h b/config.def.h
index 34884c0..fe24d24 100644
--- a/config.def.h
+++ b/config.def.h
@@ -20,6 +20,9 @@ static unsigned int actionfps = 30;
 /* TERM value */
 static char termname[] = "st-256color";
 
+/* CLIPBOARD */
+static char clipboard_selection[] = "PRIMARY"; // or CLIPBOARD
+
 static unsigned int tabspaces = 8;
 
 
diff --git a/st.c b/st.c
index 0923cec..2259311 100644
--- a/st.c
+++ b/st.c
@@ -834,7 +834,7 @@ void
 clippaste(const Arg *dummy) {
 	Atom clipboard;
 
-	clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+	clipboard = XInternAtom(xw.dpy, clipboard_selection, 0);
 	XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
 			xw.win, CurrentTime);
 }
@@ -892,7 +892,7 @@ xsetsel(char *str) {
 
 	XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
 
-	clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+	clipboard = XInternAtom(xw.dpy, clipboard_selection, 0);
 	XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
 }