1 files changed, 1 insertions, 0 deletions
diff --git a/common/mutex.cpp b/common/mutex.cpp
index 7a2601477d..6205de405b 100644
--- a/common/mutex.cpp
+++ b/common/mutex.cpp
@@ -29,6 +29,7 @@
 namespace Common {
 
 Mutex::Mutex() {
+	assert(g_system);
 	_mutex = g_system->createMutex();
 }