diff --git a/config.def.h b/config.def.h
index 3e9cda5..a9c65a9 100644
--- a/config.def.h
+++ b/config.def.h
@@ -156,8 +156,14 @@ unsigned int defaultattr = 11;
  */
 MouseShortcut mshortcuts[] = {
 	/* button               mask            string */
-	{ Button4,              XK_ANY_MOD,     "\031" },
-	{ Button5,              XK_ANY_MOD,     "\005" },
+	{ Button4,              XK_NO_MOD,      "\031" },
+	{ Button5,              XK_NO_MOD,      "\005" },
+};
+
+MouseKey mkeys[] = {
+	/* button               mask            function        argument */
+	{ Button4,              ShiftMask,      kscrollup,      {.i =  1} },
+	{ Button5,              ShiftMask,      kscrolldown,    {.i =  1} },
 };
 
 /* Internal keyboard shortcuts. */
diff --git a/st.c b/st.c
index b74b9dc..d33eb5b 100644
--- a/st.c
+++ b/st.c
@@ -237,6 +237,7 @@ static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
 /* config.h array lengths */
 size_t colornamelen = LEN(colorname);
 size_t mshortcutslen = LEN(mshortcuts);
+size_t mkeyslen = LEN(mkeys);
 size_t shortcutslen = LEN(shortcuts);
 size_t selmaskslen = LEN(selmasks);
 
diff --git a/st.h b/st.h
index 2d9b028..ca90c31 100644
--- a/st.h
+++ b/st.h
@@ -182,6 +182,13 @@ typedef union {
 } Arg;
 
 typedef struct {
+	uint b;
+	uint mask;
+	void (*func)(const Arg *);
+	const Arg arg;
+} MouseKey;
+
+typedef struct {
 	uint mod;
 	KeySym keysym;
 	void (*func)(const Arg *);
@@ -271,6 +278,8 @@ extern unsigned int mousebg;
 extern unsigned int defaultattr;
 extern MouseShortcut mshortcuts[];
 extern size_t mshortcutslen;
+extern MouseKey mkeys[];
+extern size_t mkeyslen;
 extern Shortcut shortcuts[];
 extern size_t shortcutslen;
 extern uint forceselmod;
diff --git a/x.c b/x.c
index 495cd90..67dcfdc 100644
--- a/x.c
+++ b/x.c
@@ -248,6 +248,7 @@ bpress(XEvent *e)
 {
 	struct timespec now;
 	MouseShortcut *ms;
+	MouseKey *mk;
 
 	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
 		mousereport(e);
@@ -262,6 +263,14 @@ bpress(XEvent *e)
 		}
 	}
 
+	for (mk = mkeys; mk < mkeys + mkeyslen; mk++) {
+		if (e->xbutton.button == mk->b
+				&& match(mk->mask, e->xbutton.state)) {
+			mk->func(&mk->arg);
+			return;
+		}
+	}
+
 	if (e->xbutton.button == Button1) {
 		clock_gettime(CLOCK_MONOTONIC, &now);