diff --git a/examples/basic.cc b/examples/basic.cc
index 04b66d8..dc99504 100644
--- a/examples/basic.cc
+++ b/examples/basic.cc
@@ -1,5 +1,7 @@
 #include "../lmdb-safe.hh"
 
+#include <iostream>
+
 using namespace std;
 using namespace LMDBSafe;
 
diff --git a/examples/multi.cc b/examples/multi.cc
index 37fe5d2..cbe5ab3 100644
--- a/examples/multi.cc
+++ b/examples/multi.cc
@@ -2,6 +2,8 @@
 
 #include <unistd.h>
 
+#include <iostream>
+
 using namespace std;
 using namespace LMDBSafe;
 
diff --git a/examples/rel.cc b/examples/rel.cc
index cfdbc29..2ad2ce7 100644
--- a/examples/rel.cc
+++ b/examples/rel.cc
@@ -5,6 +5,7 @@
 
 #include <c++utilities/application/global.h>
 
+#include <iostream>
 #include <sstream>
 
 using namespace std;
diff --git a/examples/resize.cc b/examples/resize.cc
index a14f6c0..6261a7b 100644
--- a/examples/resize.cc
+++ b/examples/resize.cc
@@ -1,6 +1,7 @@
 #include "../lmdb-safe.hh"
 
 #include <cstring>
+#include <iostream>
 
 using namespace std;
 using namespace LMDBSafe;
diff --git a/examples/scale.cc b/examples/scale.cc
index 7c1cd2a..a884833 100644
--- a/examples/scale.cc
+++ b/examples/scale.cc
@@ -2,6 +2,8 @@
 
 #include <c++utilities/conversion/stringconversion.h>
 
+#include <iostream>
+
 using namespace std;
 using namespace LMDBSafe;
 
diff --git a/examples/typed.cc b/examples/typed.cc
index bc328de..db8e239 100644
--- a/examples/typed.cc
+++ b/examples/typed.cc
@@ -5,6 +5,7 @@
 
 #include <arpa/inet.h>
 
+#include <iostream>
 #include <string>
 
 using namespace std;
diff --git a/lmdb-safe.hh b/lmdb-safe.hh
index 73c30f4..5c3c0fc 100644
--- a/lmdb-safe.hh
+++ b/lmdb-safe.hh
@@ -6,13 +6,10 @@
 
 #include <algorithm>
 #include <cstring>
-#include <fstream>
-#include <iostream>
 #include <limits>
 #include <map>
 #include <memory>
 #include <mutex>
-#include <set>
 #include <stdexcept>
 #include <string>
 #include <thread>