diff --git a/src/timer.h b/src/timer.h
index 3cc191e2..2da0163b 100644
--- a/src/timer.h
+++ b/src/timer.h
@@ -24,6 +24,8 @@
 #ifndef TIMER_H
 #define TIMER_H
 
+#include "config.h"
+
 #include <stdint.h>
 
 #include "libinput-util.h"
diff --git a/src/util-multivalue.h b/src/util-multivalue.h
index abfabe06..790c9069 100644
--- a/src/util-multivalue.h
+++ b/src/util-multivalue.h
@@ -24,6 +24,8 @@
 
 #pragma once
 
+#include "config.h"
+
 #include <stdint.h>
 #include <stdbool.h>
 
diff --git a/tools/shared.h b/tools/shared.h
index dd50fb4e..2cf14f95 100644
--- a/tools/shared.h
+++ b/tools/shared.h
@@ -24,6 +24,8 @@
 #ifndef _SHARED_H_
 #define _SHARED_H_
 
+#include "config.h"
+
 #include <stdbool.h>
 #include <limits.h>
 #include <getopt.h>