diff --git a/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoCompileActionBuilder.java b/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoCompileActionBuilder.java
index 2dbc5308ece5dc..58a17cb4ddd7d7 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoCompileActionBuilder.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoCompileActionBuilder.java
@@ -533,6 +533,8 @@ static CustomCommandLine createCommandLineFromToolchains(
       }
     }
 
+    cmdLine.addAll(ImmutableList.of("--include_source_info"));
+
     cmdLine.addAll(protocOpts);
 
     // Add include maps