diff --git a/contrib/guix/libexec/build.sh b/contrib/guix/libexec/build.sh
index 061e1e65..21879f48 100755
--- a/contrib/guix/libexec/build.sh
+++ b/contrib/guix/libexec/build.sh
@@ -502,6 +502,5 @@ mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR" \
         find "$ACTUAL_OUTDIR" -type f -not -name "*.txt"
     } | xargs realpath --relative-base="$PWD" \
       | xargs sha256sum \
-      | sort -k2 \
-      | sponge "$LOGDIR"/SHA256SUMS.part
+      | sort -k2 -o "$LOGDIR"/SHA256SUMS.part
 )
diff --git a/contrib/guix/manifest.scm b/contrib/guix/manifest.scm
index e94b3b5e..315d8be0 100644
--- a/contrib/guix/manifest.scm
+++ b/contrib/guix/manifest.scm
@@ -464,7 +464,6 @@ inspecting signatures in Mach-O binaries.")
         patch
         gawk
         sed
-        moreutils
         patchelf
         ;; Compression and archiving
         tar