diff --git a/src/omemo/crypto.c b/src/omemo/crypto.c
index a4a2d5fc..0423d9da 100644
--- a/src/omemo/crypto.c
+++ b/src/omemo/crypto.c
@@ -32,6 +32,8 @@
  * source files in the program, then also delete it here.
  *
  */
+#include "config.h"
+
 #include <assert.h>
 #include <signal/signal_protocol.h>
 #include <signal/signal_protocol_types.h>
diff --git a/src/omemo/omemo.c b/src/omemo/omemo.c
index 69c96003..a552cd57 100644
--- a/src/omemo/omemo.c
+++ b/src/omemo/omemo.c
@@ -33,6 +33,8 @@
  * source files in the program, then also delete it here.
  *
  */
+#include "config.h"
+
 #include <sys/time.h>
 #include <sys/stat.h>