diff --git a/hecl/include/hecl/FourCC.hpp b/hecl/include/hecl/FourCC.hpp
index 8950799d0..26ba12ad6 100644
--- a/hecl/include/hecl/FourCC.hpp
+++ b/hecl/include/hecl/FourCC.hpp
@@ -93,7 +93,7 @@ struct hash<hecl::FourCC> {
 };
 } // namespace std
 
-FMT_CUSTOM_FORMATTER(hecl::FourCC, "{:c}{:c}{:c}{:c}",
-                     obj.getChars()[0], obj.getChars()[1], obj.getChars()[2], obj.getChars()[3])
-FMT_CUSTOM_FORMATTER(hecl::DNAFourCC, "{:c}{:c}{:c}{:c}",
-                     obj.getChars()[0], obj.getChars()[1], obj.getChars()[2], obj.getChars()[3])
+FMT_CUSTOM_FORMATTER(hecl::FourCC, "{:c}{:c}{:c}{:c}", obj.getChars()[0], obj.getChars()[1], obj.getChars()[2],
+                     obj.getChars()[3])
+FMT_CUSTOM_FORMATTER(hecl::DNAFourCC, "{:c}{:c}{:c}{:c}", obj.getChars()[0], obj.getChars()[1], obj.getChars()[2],
+                     obj.getChars()[3])