diff --git a/Makefile b/Makefile
index 642885512..18cb707ef 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,6 @@ include/sourmash.h: src/core/src/lib.rs \
                     src/core/src/ffi/hyperloglog.rs \
                     src/core/src/ffi/minhash.rs \
                     src/core/src/ffi/signature.rs \
-                    src/core/src/ffi/sketch.rs \
                     src/core/src/ffi/nodegraph.rs \
                     src/core/src/ffi/index/mod.rs \
                     src/core/src/ffi/index/revindex.rs \
diff --git a/src/core/src/from.rs b/src/core/src/from.rs
index dfc384236..95c5aa5fc 100644
--- a/src/core/src/from.rs
+++ b/src/core/src/from.rs
@@ -2,6 +2,7 @@ use finch::sketch_schemes::mash::MashSketcher;
 use finch::sketch_schemes::SketchScheme;
 
 use crate::encodings::HashFunctions;
+use crate::prelude::*;
 use crate::sketch::minhash::KmerMinHash;
 
 /*