diff --git a/histogram_internal.h b/histogram_internal.h
index e4a86b8..24ec11e 100644
--- a/histogram_internal.h
+++ b/histogram_internal.h
@@ -1,6 +1,5 @@
+
 #pragma once
 #include <vector>
 
-bool find_minmax(const std::vector<double>& numbers,
-    double& min,
-    double& max);
+bool find_minmax(const std::vector<double>& numbers, double& min, double& max);