diff --git a/accumulator.h b/accumulator.h
index f1f4b54..5d10a66 100644
--- a/accumulator.h
+++ b/accumulator.h
@@ -4,9 +4,9 @@
 #include "event_adder_impl.h"
 #include "generator.h"
 #include "pool.h"
+#include <fmt/core.h>
 #include <algorithm>
 #include <exception>
-#include <fmt/core.h>
 
 namespace fortuna {
 namespace accumulator {