diff --git a/docs/spmenu.conf b/docs/spmenu.conf
index 90d044a..e1a48ef 100644
--- a/docs/spmenu.conf
+++ b/docs/spmenu.conf
@@ -422,21 +422,21 @@ spmenu = {
            // Shift+=: Increase image size by 100
            { mode = 0;
              modifier = "Shift";
-             key = "=";
+             key = "+"; // Note that + is used instead of = because Shift is held down.
              function = "setimgsize";
              argument = "+100";
            },
            // Shift+-: Decrease image size by 100
            { mode = 0;
              modifier = "Shift";
-             key = "-";
+             key = "_"; // Note that _ is used instead of - because Shift is held down.
              function = "setimgsize";
              argument = "-100";
            },
            // Shift+0: Set image size to the default
            { mode = 0;
              modifier = "Shift";
-             key = "0";
+             key = ")"; // Note that ) is used instead of 0 because Shift is held down.
              function = "defaultimg";
              argument = "0";
            },
@@ -485,14 +485,14 @@ spmenu = {
            // Shift+1: Decrease image gaps by 100
            { mode = 0;
              modifier = "Shift";
-             key = "1";
+             key = "!"; // Note that ! is used instead of 1 because Shift is held down.
              function = "setimggaps";
              argument = "-100";
            },
            // Shift+2: Increase image gaps by 100
            { mode = 0;
              modifier = "Shift";
-             key = "2";
+             key = "@"; // Note that @ is used instead of 2 because Shift is held down.
              function = "setimggaps";
              argument = "+100";
            },
diff --git a/libs/x11/key.c b/libs/x11/key.c
index ca55272..efc9dd2 100644
--- a/libs/x11/key.c
+++ b/libs/x11/key.c
@@ -18,7 +18,8 @@ void keypress_x11(XEvent *e) {
     updatenumlockmask();
     {
         unsigned int i;
-        KeySym keysym;
+        KeySym keysym = NoSymbol;
+        KeySym keysym_case = NoSymbol;
         XKeyEvent *ev;
         char buf[64];
         KeySym ksym = NoSymbol;
@@ -28,7 +29,8 @@ void keypress_x11(XEvent *e) {
         ev = &e->xkey;
         len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
 
-        keysym = XkbKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0, 0);
+        // keysym = XkbKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0, 0);
+        XConvertCase(ksym, &keysym, &keysym_case);
 
         // this makes sure we always have a way to exit if we unbind our quit key
         if (keysym == hkeys[0].keysym && CLEANMASK(hkeys[0].mod) == CLEANMASK(ev->state) && hkeys[0].func) hkeys[0].func(&(hkeys[0].arg));