diff --git a/tests/manual/qtabbar/CMakeLists.txt b/tests/manual/qtabbar/CMakeLists.txt
index c75a6009cb6..119fafc1ef7 100644
--- a/tests/manual/qtabbar/CMakeLists.txt
+++ b/tests/manual/qtabbar/CMakeLists.txt
@@ -4,7 +4,7 @@
 ## qtabbar Binary:
 #####################################################################
 
-qt_internal_add_manual_test(qtabbar
+qt_internal_add_manual_test(tst_manual_qtabbar
     GUI
     SOURCES
         main.cpp
diff --git a/tests/manual/rhi/instancing/CMakeLists.txt b/tests/manual/rhi/instancing/CMakeLists.txt
index 7b1d448238a..d6e333f0826 100644
--- a/tests/manual/rhi/instancing/CMakeLists.txt
+++ b/tests/manual/rhi/instancing/CMakeLists.txt
@@ -4,7 +4,7 @@
 ## instancing Binary:
 #####################################################################
 
-qt_internal_add_manual_test(instancing
+qt_internal_add_manual_test(tst_manual_instancing
     GUI
     SOURCES
         instancing.cpp
@@ -19,7 +19,7 @@ set(instancing_resource_files
     "inst.vert.qsb"
 )
 
-qt_internal_add_resource(instancing "instancing"
+qt_internal_add_resource(tst_manual_instancing "instancing"
     PREFIX
         "/"
     FILES