1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/objc/ProtocolBuffers2Support.java b/src/main/java/com/google/devtools/build/lib/rules/objc/ProtocolBuffers2Support.java
index 67dd444271..7e13b35921 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/objc/ProtocolBuffers2Support.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/objc/ProtocolBuffers2Support.java
@@ -75,7 +75,7 @@ final class ProtocolBuffers2Support {
             .addOutputs(getGeneratedProtoOutputs(getHeaderExtension()))
             .addOutputs(getGeneratedProtoOutputs(getSourceExtension()))
             .setExecutable(PathFragment.create("/usr/bin/python"))
-            .setCommandLine(getGenerationCommandLine())
+            .addCommandLine(getGenerationCommandLine())
             .build(ruleContext));
     return this;
   }