diff --git a/src/plugins/valgrind/valgrindprocess.cpp b/src/plugins/valgrind/valgrindprocess.cpp
index ef87ac89412..37a06d36703 100644
--- a/src/plugins/valgrind/valgrindprocess.cpp
+++ b/src/plugins/valgrind/valgrindprocess.cpp
@@ -308,7 +308,7 @@ QString ValgrindProcess::argumentString(Utils::OsType osType) const
 {
     QString arguments = Utils::QtcProcess::joinArgs(m_valgrindArguments, osType);
     Utils::QtcProcess::addArg(&arguments, m_debuggeeExecutable, osType);
-    Utils::QtcProcess::addArg(&arguments, m_debuggeeArguments, osType);
+    Utils::QtcProcess::addArgs(&arguments, m_debuggeeArguments);
     return arguments;
 }