diff --git a/src/main/java/com/google/devtools/build/lib/exec/CompactSpawnLogContext.java b/src/main/java/com/google/devtools/build/lib/exec/CompactSpawnLogContext.java
index ecd9728d6c49c3..3a0d1eb8779349 100644
--- a/src/main/java/com/google/devtools/build/lib/exec/CompactSpawnLogContext.java
+++ b/src/main/java/com/google/devtools/build/lib/exec/CompactSpawnLogContext.java
@@ -214,7 +214,9 @@ public void logSpawn(
       builder.setInputSetId(logInputs(spawn, inputMetadataProvider, fileSystem));
       builder.setToolSetId(logTools(spawn, inputMetadataProvider, fileSystem));
 
-      builder.setTargetLabel(spawn.getTargetLabel().getCanonicalForm());
+      if (spawn.getTargetLabel() != null) {
+        builder.setTargetLabel(spawn.getTargetLabel().getCanonicalForm());
+      }
       builder.setMnemonic(spawn.getMnemonic());
 
       for (ActionInput output : spawn.getOutputFiles()) {