diff --git a/src/libs/alm/Area.cpp b/src/libs/alm/Area.cpp
index 78fa1f5edf..c7ca552fef 100644
--- a/src/libs/alm/Area.cpp
+++ b/src/libs/alm/Area.cpp
@@ -15,6 +15,7 @@
 
 #include <algorithm>	// for max
 
+using namespace std;
 
 BSize Area::kMaxSize(INT_MAX, INT_MAX);
 BSize Area::kMinSize(0, 0);