diff --git a/src/pew/tools/save.hpp b/src/pew/tools/save.hpp
index b5c1cee673bb565f933f962e24643f2c7e4bcef8..ff21d7960f5f74260605f13949c84805ce5b4bef 100644
--- a/src/pew/tools/save.hpp
+++ b/src/pew/tools/save.hpp
@@ -4,7 +4,10 @@
 #include <pew/vector/common.hpp>
 #include <vector>
 namespace pew {
-    void savePng(const std::vector<Color>& buffer, const Extent2D& resolution, const std::string& filename);
+    void
+    savePng(const std::vector<Color>& buffer,
+            const Extent2D&           resolution,
+            const std::string&        filename);
 }
 
 #endif
\ No newline at end of file