diff --git a/src/evdev-middle-button.c b/src/evdev-middle-button.c
index 903fa4d0..c9894865 100644
--- a/src/evdev-middle-button.c
+++ b/src/evdev-middle-button.c
@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <stdint.h>
 
 #include "evdev.h"
diff --git a/src/evdev-mt-touchpad-buttons.c b/src/evdev-mt-touchpad-buttons.c
index 64e9d289..4b1d6ab5 100644
--- a/src/evdev-mt-touchpad-buttons.c
+++ b/src/evdev-mt-touchpad-buttons.c
@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <errno.h>
 #include <limits.h>
 #include <math.h>
diff --git a/src/evdev-mt-touchpad-edge-scroll.c b/src/evdev-mt-touchpad-edge-scroll.c
index 585c764c..2302d2c0 100644
--- a/src/evdev-mt-touchpad-edge-scroll.c
+++ b/src/evdev-mt-touchpad-edge-scroll.c
@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <errno.h>
 #include <limits.h>
 #include <math.h>
diff --git a/src/timer.c b/src/timer.c
index dbd38940..1e507df1 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -20,6 +20,8 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "config.h"
+
 #include <assert.h>
 #include <errno.h>
 #include <inttypes.h>