diff --git a/src/mongo/db/dbwebserver.cpp b/src/mongo/db/dbwebserver.cpp
index b202e05..0255613 100644
--- a/src/mongo/db/dbwebserver.cpp
+++ b/src/mongo/db/dbwebserver.cpp
@@ -67,6 +67,7 @@ namespace mongo {
 using std::map;
 using std::stringstream;
 using std::vector;
+using std::string;
 
 using namespace html;
 
diff --git a/src/mongo/shell/bench.cpp b/src/mongo/shell/bench.cpp
index 040002f..cb0f6f4 100644
--- a/src/mongo/shell/bench.cpp
+++ b/src/mongo/shell/bench.cpp
@@ -78,6 +78,7 @@ namespace mongo {
 using std::unique_ptr;
 using std::cout;
 using std::map;
+using std::string;
 
 const std::map<OpType, std::string> opTypeName{{OpType::NONE, "none"},
                                                {OpType::NOP, "nop"},