diff --git a/qa/mixed-cluster/build.gradle b/qa/mixed-cluster/build.gradle
index c3a0e8a1470..d3376286557 100644
--- a/qa/mixed-cluster/build.gradle
+++ b/qa/mixed-cluster/build.gradle
@@ -57,7 +57,7 @@ for (Version version : bwcVersions.wireCompatible) {
   tasks.getByName("${baseName}#mixedClusterTestRunner").configure {
     /* To support taking index snapshots, we have to set path.repo setting */
     systemProperty 'tests.path.repo', new File(buildDir, "cluster/shared/repo")
-    systemProperty 'tests.rest.blacklist', ['explain/11_basic_with_types/Explain body without query element}'].join(',')
+    systemProperty 'tests.rest.blacklist', ['explain/11_basic_with_types/Explain body without query element'].join(',')
   }
 }