diff --git a/src/libs/utils/environment.cpp b/src/libs/utils/environment.cpp
index 2f0d7e6c97d106874f26bc50b4b4313194ce643f..4e45efe678c90a5706411a8779ad91b65e2ed28f 100644
--- a/src/libs/utils/environment.cpp
+++ b/src/libs/utils/environment.cpp
@@ -173,6 +173,7 @@ void Environment::prependOrSetPath(const QString &value)
 void Environment::prependOrSetLibrarySearchPath(const QString &value)
 {
 #ifdef Q_OS_MAC
+    Q_UNUSED(value);
     // we could set DYLD_LIBRARY_PATH on Mac but it is unnecessary in practice
 #elif defined(Q_OS_WIN)
     const QChar sep = QLatin1Char(';');