1 files changed, 2 insertions, 2 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/skylark/SkylarkRuleImplementationFunctions.java b/src/main/java/com/google/devtools/build/lib/analysis/skylark/SkylarkRuleImplementationFunctions.java
index 6d1e73883f..f71730b10a 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/skylark/SkylarkRuleImplementationFunctions.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/skylark/SkylarkRuleImplementationFunctions.java
@@ -732,8 +732,8 @@ public class SkylarkRuleImplementationFunctions {
           List<String> argv =
               helper.buildCommandLine(command, inputs, SCRIPT_SUFFIX, executionRequirements);
           return Tuple.<Object>of(
-              new MutableList(inputs, env),
-              new MutableList(argv, env),
+              MutableList.copyOf(env, inputs),
+              MutableList.copyOf(env, argv),
               helper.getToolsRunfilesSuppliers());
         }
       };