diff --git a/pcsx2-qt/QtHost.cpp b/pcsx2-qt/QtHost.cpp
index 9c27c44986..5729b20578 100644
--- a/pcsx2-qt/QtHost.cpp
+++ b/pcsx2-qt/QtHost.cpp
@@ -1539,6 +1539,7 @@ void QtHost::PrintCommandLineHelp(const std::string_view& progname)
 	std::fprintf(stderr, "  -statefile <filename>: Loads state from the specified filename.\n");
 	std::fprintf(stderr, "  -fullscreen: Enters fullscreen mode immediately after starting.\n");
 	std::fprintf(stderr, "  -nofullscreen: Prevents fullscreen mode from triggering if enabled.\n");
+	std::fprintf(stderr, "  -bigpicture: Forces PCSX2 to use the Big Picture mode (useful for controller-only and couch play).\n");
 	std::fprintf(stderr, "  -earlyconsolelog: Forces logging of early console messages to console.\n");
 	std::fprintf(stderr, "  -testconfig: Initializes configuration and checks version, then exits.\n");
 	std::fprintf(stderr, "  -debugger: Open debugger and break on entry point.\n");