Index: src/XMPPJSONFileStorage.m
==================================================================
--- src/XMPPJSONFileStorage.m
+++ src/XMPPJSONFileStorage.m
@@ -18,11 +18,13 @@
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 
 #import <ObjFW/OFString.h>
 #import <ObjFW/OFArray.h>
 #import <ObjFW/OFDictionary.h>
 #import <ObjFW/OFNumber.h>