diff --git a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
index ce283b1accbc75..0d888c2e3cdb99 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionContext.java
@@ -327,6 +327,8 @@ public void maybeReportSubcommand(Spawn spawn) {
         reason.append(", execution platform: ");
         reason.append(owner.getExecutionPlatform().label());
       }
+      reason.append(", mnemonic: ");
+      reason.append(owner.getMnemonic());
       reason.append("]");
     }