diff --git a/src/termio/stream_handler.zig b/src/termio/stream_handler.zig
index 90a33e8b7..00762bc73 100644
--- a/src/termio/stream_handler.zig
+++ b/src/termio/stream_handler.zig
@@ -1057,13 +1057,36 @@ pub const StreamHandler = struct {
             // Get the raw string of the URI. Its unclear to me if the various
             // tags of this enum guarantee no percent-encoding so we just
             // check all of it. This isn't a performance critical path.
-            const host = switch (host_component) {
-                .raw => |v| v,
-                .percent_encoded => |v| v,
+            const host = host: {
+                const h = switch (host_component) {
+                    .raw => |v| v,
+                    .percent_encoded => |v| v,
+                };
+                if (h.len == 0 or std.mem.eql(u8, "localhost", h)) {
+                    break :host_valid true;
+                }
+
+                // When the "Private Wi-Fi address" setting is toggled on macOS the hostname
+                // is set to a string of digits separated by a colon, e.g. '12:34:56:78:90:12'.
+                // The URI will be parsed as if the last set o digit is a port, so we need to
+                // make sure that part is included when it's set.
+                if (uri.port) |port| {
+                    // 65_535 is considered the highest port number on Linux.
+                    const PORT_NUMBER_MAX_DIGITS = 5;
+
+                    // Make sure there is space for a max length hostname + the max number of digits.
+                    var host_and_port_buf: [posix.HOST_NAME_MAX + PORT_NUMBER_MAX_DIGITS]u8 = undefined;
+
+                    const host_and_port = std.fmt.bufPrint(&host_and_port_buf, "{s}:{d}", .{ h, port }) catch |err| {
+                        log.warn("failed to get full hostname for OSC 7 validation: {}", .{err});
+                        break :host_valid false;
+                    };
+
+                    break :host host_and_port;
+                } else {
+                    break :host h;
+                }
             };
-            if (host.len == 0 or std.mem.eql(u8, "localhost", host)) {
-                break :host_valid true;
-            }
 
             // Otherwise, it must match our hostname.
             var buf: [posix.HOST_NAME_MAX]u8 = undefined;