diff --git a/src/plugins/valgrind/callgrindtool.cpp b/src/plugins/valgrind/callgrindtool.cpp
index c00673c83de..ece0c27ae0f 100644
--- a/src/plugins/valgrind/callgrindtool.cpp
+++ b/src/plugins/valgrind/callgrindtool.cpp
@@ -1014,7 +1014,7 @@ void initCallgrindTool()
 
 void destroyCallgrindTool()
 {
-    ExtensionSystem::PluginManager::addObject(theCallgrindRunControlFactory);
+    ExtensionSystem::PluginManager::removeObject(theCallgrindRunControlFactory);
     delete theCallgrindRunControlFactory;
     theCallgrindRunControlFactory = 0;
 }
diff --git a/src/plugins/valgrind/memchecktool.cpp b/src/plugins/valgrind/memchecktool.cpp
index 7a8dead6f26..a076e9bebaa 100644
--- a/src/plugins/valgrind/memchecktool.cpp
+++ b/src/plugins/valgrind/memchecktool.cpp
@@ -728,7 +728,7 @@ void initMemcheckTool()
 
 void destroyMemcheckTool()
 {
-    ExtensionSystem::PluginManager::addObject(theMemcheckRunControlFactory);
+    ExtensionSystem::PluginManager::removeObject(theMemcheckRunControlFactory);
     delete theMemcheckRunControlFactory;
     theMemcheckRunControlFactory = 0;
 }