diff --git a/src/main/java/com/google/devtools/build/lib/exec/StandaloneTestStrategy.java b/src/main/java/com/google/devtools/build/lib/exec/StandaloneTestStrategy.java
index 46ffcc07daacb7..1be5cc9382f11b 100644
--- a/src/main/java/com/google/devtools/build/lib/exec/StandaloneTestStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/exec/StandaloneTestStrategy.java
@@ -786,11 +786,13 @@ private TestAttemptResult runTestAttempt(
         if (e.isCatastrophic()) {
           closeSuppressed(e, streamed);
           closeSuppressed(e, fileOutErr);
+          closeSuppressed(e, coverageOutErr);
           throw e;
         }
         if (!e.getSpawnResult().setupSuccess()) {
           closeSuppressed(e, streamed);
           closeSuppressed(e, fileOutErr);
+          closeSuppressed(e, coverageOutErr);
           // Rethrow as the test could not be run and thus there's no point in retrying.
           throw e;
         }
@@ -801,10 +803,12 @@ private TestAttemptResult runTestAttempt(
       } catch (ExecException | InterruptedException e) {
         closeSuppressed(e, streamed);
         closeSuppressed(e, fileOutErr);
+        closeSuppressed(e, coverageOutErr);
         throw e;
       }
 
       // Append all output from the coverage spawn to the test log.
+      coverageOutErr.close();
       writeOutFile(coverageOutErr.getErrorPath(), coverageOutErr.getOutputPath());
       appendCoverageLog(coverageOutErr, fileOutErr);
     }