diff --git a/src/add-ons/kernel/network/ppp/pppoe/PPPoEDevice.cpp b/src/add-ons/kernel/network/ppp/pppoe/PPPoEDevice.cpp
index bf04226148..7dbf9ec4f7 100644
--- a/src/add-ons/kernel/network/ppp/pppoe/PPPoEDevice.cpp
+++ b/src/add-ons/kernel/network/ppp/pppoe/PPPoEDevice.cpp
@@ -18,6 +18,8 @@
 #ifdef _KERNEL_MODE
 	#define spawn_thread spawn_kernel_thread
 	#define printf dprintf
+#else
+	#include <cstdio>
 #endif
 
 
diff --git a/src/add-ons/kernel/network/ppp/pppoe/pppoe.cpp b/src/add-ons/kernel/network/ppp/pppoe/pppoe.cpp
index 5132056d86..6ce2680e26 100644
--- a/src/add-ons/kernel/network/ppp/pppoe/pppoe.cpp
+++ b/src/add-ons/kernel/network/ppp/pppoe/pppoe.cpp
@@ -22,6 +22,8 @@
 #ifdef _KERNEL_MODE
 	#define spawn_thread spawn_kernel_thread
 	#define printf dprintf
+#else
+	#include <cstdio>
 #endif