diff --git a/src/osmo-bts-litecell15/lc15_l1_if.c b/src/osmo-bts-litecell15/lc15_l1_if.c
index c1b9b71..053844f 100644
--- a/src/osmo-bts-litecell15/lc15_l1_if.c
+++ b/src/osmo-bts-litecell15/lc15_l1_if.c
@@ -34,6 +34,7 @@
 #include <lc15_l1_if.h>
 #include <gprs_debug.h>
 #include <pcu_l1_if.h>
+#include <pcu_l1_if_phy.h>
 #include <pdch.h>
 #include <bts.h>
 
diff --git a/src/osmo-bts-oc2g/oc2g_l1_if.c b/src/osmo-bts-oc2g/oc2g_l1_if.c
index dae5908..1ea0b26 100644
--- a/src/osmo-bts-oc2g/oc2g_l1_if.c
+++ b/src/osmo-bts-oc2g/oc2g_l1_if.c
@@ -35,6 +35,7 @@
 
 #include <gprs_debug.h>
 #include <pcu_l1_if.h>
+#include <pcu_l1_if_phy.h>
 #include <osmocom/pcu/pcuif_proto.h>
 #include <bts.h>
 
diff --git a/src/osmo-bts-sysmo/sysmo_l1_if.c b/src/osmo-bts-sysmo/sysmo_l1_if.c
index f8b10cd..31028f5 100644
--- a/src/osmo-bts-sysmo/sysmo_l1_if.c
+++ b/src/osmo-bts-sysmo/sysmo_l1_if.c
@@ -15,6 +15,7 @@
 #include <sysmo_l1_if.h>
 #include <gprs_debug.h>
 #include <pcu_l1_if.h>
+#include <pcu_l1_if_phy.h>
 #include <pdch.h>
 #include <bts.h>