diff --git a/src/plugins/valgrind/callgrindengine.cpp b/src/plugins/valgrind/callgrindengine.cpp
index a572bfcb006..0cffc9130ee 100644
--- a/src/plugins/valgrind/callgrindengine.cpp
+++ b/src/plugins/valgrind/callgrindengine.cpp
@@ -86,7 +86,8 @@ QStringList CallgrindEngine::toolArguments() const
         arguments << "--instr-atstart=no";
 
     // add extra arguments
-    arguments << m_extraArguments;
+    if (!m_argumentForToggleCollect.isEmpty())
+        arguments << m_argumentForToggleCollect;
 
     return arguments;
 }
@@ -133,7 +134,7 @@ void CallgrindEngine::setToggleCollectFunction(const QString &toggleCollectFunct
     if (toggleCollectFunction.isEmpty())
         return;
 
-    m_extraArguments << QString("--toggle-collect=%1").arg(toggleCollectFunction);
+    m_argumentForToggleCollect = QLatin1String("--toggle-collect=") + toggleCollectFunction;
 }
 
 void CallgrindEngine::reset()
diff --git a/src/plugins/valgrind/callgrindengine.h b/src/plugins/valgrind/callgrindengine.h
index 4b34837875a..8eb0567749d 100644
--- a/src/plugins/valgrind/callgrindengine.h
+++ b/src/plugins/valgrind/callgrindengine.h
@@ -85,7 +85,7 @@ private:
     Valgrind::Callgrind::CallgrindRunner m_runner;
     bool m_markAsPaused;
 
-    QStringList m_extraArguments;
+    QString m_argumentForToggleCollect;
 };
 
 } // namespace Internal