diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1539093..532530a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,11 +27,13 @@
 * new module: disk-io.
 * alsa: `dB` tag ([#202][202])
 * mpd: `file` tag ([#219][219]).
+* on-click: support `next`/`previous` mouse buttons ([#228][228]).
 
 [153]: https://codeberg.org/dnkl/yambar/issues/153
 [159]: https://codeberg.org/dnkl/yambar/issues/159
 [202]: https://codeberg.org/dnkl/yambar/issues/202
 [219]: https://codeberg.org/dnkl/yambar/pulls/219
+[228]: https://codeberg.org/dnkl/yambar/pulls/228
 
 
 ### Changed
diff --git a/bar/wayland.c b/bar/wayland.c
index a57fdfa..edbf0db 100644
--- a/bar/wayland.c
+++ b/bar/wayland.c
@@ -292,6 +292,8 @@ wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
         case BTN_LEFT:   btn = MOUSE_BTN_LEFT; break;
         case BTN_MIDDLE: btn = MOUSE_BTN_MIDDLE; break;
         case BTN_RIGHT:  btn = MOUSE_BTN_RIGHT; break;
+        case BTN_SIDE:   btn = MOUSE_BTN_PREVIOUS; break;
+        case BTN_EXTRA:  btn = MOUSE_BTN_NEXT; break;
         default:
             return;
         }
diff --git a/config-verify.c b/config-verify.c
index 68a50c8..a099ef7 100644
--- a/config-verify.c
+++ b/config-verify.c
@@ -188,6 +188,8 @@ conf_verify_on_click(keychain_t *chain, const struct yml_node *node)
         {"right", false, &conf_verify_string},
         {"wheel-up", false, &conf_verify_string},
         {"wheel-down", false, &conf_verify_string},
+        {"previous", false, &conf_verify_string},
+        {"next", false, &conf_verify_string},
         {NULL, false, NULL},
     };
 
diff --git a/config.c b/config.c
index d2c11a6..3d32678 100644
--- a/config.c
+++ b/config.c
@@ -236,6 +236,10 @@ conf_to_particle(const struct yml_node *node, struct conf_inherit inherited)
                     on_click_templates[MOUSE_BTN_WHEEL_UP] = template;
                 else if (strcmp(key, "wheel-down") == 0)
                     on_click_templates[MOUSE_BTN_WHEEL_DOWN] = template;
+                else if (strcmp(key, "previous") == 0)
+                    on_click_templates[MOUSE_BTN_PREVIOUS] = template;
+                else if (strcmp(key, "next") == 0)
+                    on_click_templates[MOUSE_BTN_NEXT] = template;
                 else
                     assert(false);
             }
diff --git a/doc/yambar-particles.5.scd b/doc/yambar-particles.5.scd
index 8e999fc..1b6059d 100644
--- a/doc/yambar-particles.5.scd
+++ b/doc/yambar-particles.5.scd
@@ -68,6 +68,14 @@ following attributes are supported by all particles:
 :  string
 :  no
 :  Command to execute every time a 'wheel-down' event is triggered.
+|  on-click.previous
+:  string
+:  no
+:  Command to execute when the particle is clicked with the 'previous' button.
+|  on-click.next
+:  string
+:  no
+:  Command to execute when the particle is clicked with the 'next' button.
 |  deco
 :  decoration
 :  no
diff --git a/particle.c b/particle.c
index 5f6b04d..fe1d138 100644
--- a/particle.c
+++ b/particle.c
@@ -165,6 +165,8 @@ exposable_default_on_mouse(struct exposable *exposable, struct bar *bar,
         [MOUSE_BTN_COUNT] = "count",
         [MOUSE_BTN_WHEEL_UP] = "wheel-up",
         [MOUSE_BTN_WHEEL_DOWN] = "wheel-down",
+        [MOUSE_BTN_PREVIOUS] = "previous",
+        [MOUSE_BTN_NEXT] = "next",
     };
     LOG_DBG("on_mouse: exposable=%p, event=%s, btn=%s, x=%d, y=%d (on-click=%s)",
             exposable, event == ON_MOUSE_MOTION ? "motion" : "click",
diff --git a/particle.h b/particle.h
index bdf01f2..c92c5fc 100644
--- a/particle.h
+++ b/particle.h
@@ -20,6 +20,8 @@ enum mouse_button {
     MOUSE_BTN_RIGHT,
     MOUSE_BTN_WHEEL_UP,
     MOUSE_BTN_WHEEL_DOWN,
+    MOUSE_BTN_PREVIOUS,
+    MOUSE_BTN_NEXT,
 
     MOUSE_BTN_COUNT,
 };