diff --git a/include/loki/LevelMutex.h b/include/loki/LevelMutex.h
index c13062c..715a470 100644
--- a/include/loki/LevelMutex.h
+++ b/include/loki/LevelMutex.h
@@ -30,6 +30,7 @@
     #include <pthread.h>
 #endif
 
+#include <exception>
 #include <vector>
 #include <assert.h>
 #include <time.h>