1 files changed, 3 insertions, 6 deletions
diff --git a/src/libs/installer/copydirectoryoperation.cpp b/src/libs/installer/copydirectoryoperation.cpp
index cd2b1b341..d94a5849f 100644
--- a/src/libs/installer/copydirectoryoperation.cpp
+++ b/src/libs/installer/copydirectoryoperation.cpp
@@ -63,13 +63,10 @@ void CopyDirectoryOperation::backup()
 
 bool CopyDirectoryOperation::performOperation()
 {
-    const QStringList args = arguments();
-    if (args.count() < 2 || args.count() > 3) {
-        setError(InvalidArguments);
-        setErrorString(tr("Invalid arguments in %0: %1 arguments given, %2 expected%3.")
-            .arg(name()).arg(arguments().count()).arg(tr("2 or 3"), tr(" (<source> <target> [forceOverwrite])")));
+    if (!checkArgumentCount(2, 3, tr(" (<source> <target> [forceOverwrite])")))
         return false;
-    }
+
+    const QStringList args = arguments();
     const QString sourcePath = args.at(0);
     const QString targetPath = args.at(1);
     bool overwrite = false;