diff --git a/src/modules/welcome/checker/RequirementsChecker.cpp b/src/modules/welcome/checker/RequirementsChecker.cpp
index 1aa4e95f8..9ccdfae33 100644
--- a/src/modules/welcome/checker/RequirementsChecker.cpp
+++ b/src/modules/welcome/checker/RequirementsChecker.cpp
@@ -320,6 +320,7 @@ bool
 RequirementsChecker::checkEnoughStorage( qint64 requiredSpace )
 {
 #ifdef WITHOUT_LIBPARTED
+    Q_UNUSED( requiredSpace );
     cWarning() << "RequirementsChecker is configured without libparted.";
     return false;
 #else