diff --git a/src/vnet/tcp/tcp_debug.h b/src/vnet/tcp/tcp_debug.h
index 03240c6..a0bdaa3 100644
--- a/src/vnet/tcp/tcp_debug.h
+++ b/src/vnet/tcp/tcp_debug.h
@@ -23,7 +23,11 @@
  * debug configuration. Comes with some overhead so it's not recommended for
  * production/performance scenarios. Takes priority over TCP_DEBUG_ENABLE.
  */
+#ifdef VPP_TCP_DEBUG_ALWAYS
+#define TCP_DEBUG_ALWAYS (1)
+#else
 #define TCP_DEBUG_ALWAYS (0)
+#endif
 /**
  * Build debugging infra only if enabled. Debug components controlled via
  * macros that follow.
diff --git a/src/vpp/vnet/config.h.in b/src/vpp/vnet/config.h.in
index 1402e81..ccf1571 100644
--- a/src/vpp/vnet/config.h.in
+++ b/src/vpp/vnet/config.h.in
@@ -18,5 +18,6 @@
 
 #define VPP_SANITIZE_ADDR_OPTIONS "@VPP_SANITIZE_ADDR_OPTIONS@"
 #cmakedefine VPP_IP_FIB_MTRIE_16
+#cmakedefine VPP_TCP_DEBUG_ALWAYS
 
 #endif