diff --git a/src/mux_quic.c b/src/mux_quic.c
index 5f3bda0e1..025f91c60 100644
--- a/src/mux_quic.c
+++ b/src/mux_quic.c
@@ -8,6 +8,7 @@
 #include <haproxy/dynbuf.h>
 #include <haproxy/htx.h>
 #include <haproxy/pool.h>
+#include <haproxy/sink.h>
 #include <haproxy/ssl_sock-t.h>
 #include <haproxy/trace.h>
 #include <haproxy/xprt_quic.h>
@@ -1215,6 +1216,21 @@ static void qmux_trace(enum trace_level level, uint64_t mask,
 	}
 }
 
+/* Function to automatically activate QUIC MUX traces on stdout.
+ * Activated via the compilation flag -DENABLE_QUIC_STDOUT_TRACES.
+ * Main use for now is in the docker image for QUIC interop testing.
+ */
+static void qmux_init_stdout_traces(void)
+{
+#ifdef ENABLE_QUIC_STDOUT_TRACES
+	trace_qmux.sink = sink_find("stdout");
+	trace_qmux.level = TRACE_LEVEL_DEVELOPER;
+	trace_qmux.state = TRACE_STATE_RUNNING;
+	trace_qmux.verbosity = QMUX_VERB_MINIMAL;
+#endif
+}
+INITCALL0(STG_INIT, qmux_init_stdout_traces);
+
 
 static const struct mux_ops qc_ops = {
 	.init = qc_init,