diff --git a/lix/libstore/binary-cache-store.cc b/lix/libstore/binary-cache-store.cc
index 1a67ec27e..3cab26714 100644
--- a/lix/libstore/binary-cache-store.cc
+++ b/lix/libstore/binary-cache-store.cc
@@ -178,7 +178,19 @@ try {
             {"root", listNar(narIndex)},
         };
 
-        upsertFile(std::string(info.path.hashPart()) + ".ls", j.dump(), "application/json");
+        try {
+            upsertFile(std::string(info.path.hashPart()) + ".ls", j.dump(), "application/json");
+        } catch (ForeignException & exc) {
+            if (exc.is<JSON::exception>()) {
+                warn(
+                    "Skipping NAR listing for path '%1%' due to serialization failure: %2%",
+                    printStorePath(narInfo->path),
+                    exc.what()
+                );
+            } else {
+                throw exc;
+            }
+        }
     }
 
     /* Optionally maintain an index of DWARF debug info files
diff --git a/tests/functional/nar-access.nix b/tests/functional/nar-access.nix
index 9948abe59..6756291b4 100644
--- a/tests/functional/nar-access.nix
+++ b/tests/functional/nar-access.nix
@@ -1,3 +1,4 @@
+{ nonUtf8Inodes ? false }:
 with import ./config.nix;
 
 rec {
@@ -13,6 +14,8 @@ rec {
         touch $out/qux
         mkdir $out/zyx
 
+        ${if nonUtf8Inodes then ''printf "data" > "$out/invalid-\x80file"'' else ""}
+
         cat >$out/foo/data <<EOF
         lasjdöaxnasd
 asdom 12398
diff --git a/tests/functional/nar-access.sh b/tests/functional/nar-access.sh
index af22a87eb..7667a2717 100644
--- a/tests/functional/nar-access.sh
+++ b/tests/functional/nar-access.sh
@@ -2,6 +2,7 @@ source common.sh
 
 echo "building test path"
 storePath="$(nix-build nar-access.nix -A a --no-out-link)"
+strangerStorePath="$(nix-build nar-access.nix -A a --arg nonUtf8Inode true --no-out-link)"
 
 cd "$TEST_ROOT"
 
@@ -79,3 +80,9 @@ rm -rf $cacheDir/nar
 diff -u \
     <(nix store ls --json -R $storePath/foo/bar --store "file://$cacheDir" | jq -S) \
     <(echo '{"narOffset": 368,"type":"regular","size":0}' | jq -S)
+
+# Confirm that there's no more than one `.ls` in the `$cacheDir` because non-UTF8 inodes cannot have `.ls` generated for them.
+[[ $(find $cacheDir -type f -name '*.ls' | wc -l) -eq 1 ]] || (echo "Expected at most one listing file in $cacheDir, found more"; exit -1)
+
+# Confirm that NARs with non-UTF8 inodes can still be listed
+expect 0 nix store ls $strangerStorePath/ --store "file://$cacheDir"