diff --git a/README.md b/README.md
index b1cfb37d..d3a15dce 100644
--- a/README.md
+++ b/README.md
@@ -499,6 +499,7 @@ with the terminal emulator itself. Foot implements the following OSCs:
 * `OSC 117` - reset highlight background color
 * `OSC 119` - reset highlight foreground color
 * `OSC 133` - [shell integration](#shell-integration)
+* `OSC 176` - set app ID
 * `OSC 555` - flash screen (**foot specific**)
 * `OSC 777` - desktop notification (only the `;notify` sub-command of
   OSC 777 is supported.)
diff --git a/doc/foot-ctlseqs.7.scd b/doc/foot-ctlseqs.7.scd
index 3fa03158..2d30484e 100644
--- a/doc/foot-ctlseqs.7.scd
+++ b/doc/foot-ctlseqs.7.scd
@@ -684,6 +684,11 @@ All _OSC_ sequences begin with *\\E]*, sometimes abbreviated _OSC_.
 |  \\E] 133 ; A \\E\\ 
 :  FinalTerm
 :  Mark start of shell prompt
+|  \\E] 176 ; _app-id_ \\E\\ 
+:  foot
+:  Set app ID. _app-id_ is optional; if assigned,
+   the terminal window App ID will be set to the value.
+   An empty App ID resets the value to the default.
 |  \\E] 555 \\E\\ 
 :  foot
 :  Flash the entire terminal (foot extension)
diff --git a/osc.c b/osc.c
index 45d114de..7b0e38a7 100644
--- a/osc.c
+++ b/osc.c
@@ -910,6 +910,10 @@ osc_dispatch(struct terminal *term)
         }
         break;
 
+    case 176:
+        xdg_toplevel_set_app_id(term->window->xdg_toplevel, *string ? string : term->conf->app_id);
+        break;
+
     case 555:
         osc_flash(term);
         break;