diff --git a/src/Platform/WindowlessNaClApplication.cpp b/src/Platform/WindowlessNaClApplication.cpp
index 84c695b55..a890b2c91 100644
--- a/src/Platform/WindowlessNaClApplication.cpp
+++ b/src/Platform/WindowlessNaClApplication.cpp
@@ -67,7 +67,7 @@ void WindowlessNaClApplication::createContext(Configuration* configuration) {
     } else delete configuration;
 }
 
-bool WindowlessNaClApplication::tryCreateContext(Configuration* configuration) {
+bool WindowlessNaClApplication::tryCreateContext(Configuration*) {
     CORRADE_ASSERT(!c, "Platform::WindowlessNaClApplication::tryCreateContext(): context already created", false);
 
     const std::int32_t attributes[] = {