diff --git a/src/include/units/format.h b/src/include/units/format.h
index cf267da6..4fde18a3 100644
--- a/src/include/units/format.h
+++ b/src/include/units/format.h
@@ -25,7 +25,6 @@
 #include <units/unit.h>
 #include <ostream>
 #include <string_view>
-#include <fmt/format.h>
 
 namespace units {