diff --git a/source/dyaml/stdsumtype.d b/source/dyaml/stdsumtype.d
index 5588a53..9a72726 100644
--- a/source/dyaml/stdsumtype.d
+++ b/source/dyaml/stdsumtype.d
@@ -232,7 +232,7 @@
     assert(pprint(*myExpr) == "(a + (2 * b))");
 }
 
-import std.format.spec : FormatSpec, singleSpec;
+import std.format : FormatSpec, singleSpec;
 import std.meta : AliasSeq, Filter, IndexOf = staticIndexOf, Map = staticMap;
 import std.meta : NoDuplicates;
 import std.meta : anySatisfy, allSatisfy;