diff --git a/Modules/ThirdParty/OssimPlugins/src/ossim/AlosPalsar/AlosPalsarData.h b/Modules/ThirdParty/OssimPlugins/src/ossim/AlosPalsar/AlosPalsarData.h
index 2822a4fd68d58bb1369e2c1e3c7867e8ef217309..efd2e2801651cd3ff78cdb9b1afbe88e4abdd9e1 100644
--- a/Modules/ThirdParty/OssimPlugins/src/ossim/AlosPalsar/AlosPalsarData.h
+++ b/Modules/ThirdParty/OssimPlugins/src/ossim/AlosPalsar/AlosPalsarData.h
@@ -28,6 +28,7 @@
 #define AlosPalsarData_h
 
 #include <map>
+#include <iostream>
 
 class ossimKeywordlist;