diff --git a/Sources/DFlash/DFlashIntermediateDumper.swift b/Sources/DFlash/DFlashIntermediateDumper.swift
index a9802aff..1401cb9b 100644
--- a/Sources/DFlash/DFlashIntermediateDumper.swift
+++ b/Sources/DFlash/DFlashIntermediateDumper.swift
@@ -42,7 +42,6 @@ public enum DFlashDumper {
         eval(floatArr)
 
         let shape = (0..<floatArr.ndim).map { floatArr.dim($0) }
-        let totalElements = shape.reduce(1, *)
 
         // Build spec-compliant .npy header: shape must be a Python tuple,
         // spaces pad before the final newline byte.
diff --git a/Sources/DFlash/DFlashRuntime.swift b/Sources/DFlash/DFlashRuntime.swift
index 3dcb1f68..9c4439aa 100644
--- a/Sources/DFlash/DFlashRuntime.swift
+++ b/Sources/DFlash/DFlashRuntime.swift
@@ -329,7 +329,7 @@ public enum DFlashRuntime {
 
         let draftBackend = DFlashDraftBackend()
 
-        var targetCache = makeTargetCache(targetModel: targetModel)
+        let targetCache = makeTargetCache(targetModel: targetModel)
 
         let draftCache = draftBackend.makeCache(
             draftModel: draftModel,