diff --git a/src/StdPNGLibpng.cpp b/src/StdPNGLibpng.cpp
index 21a093bc..b9fb6e40 100644
--- a/src/StdPNGLibpng.cpp
+++ b/src/StdPNGLibpng.cpp
@@ -24,7 +24,6 @@
 #include <png.h>
 
 #include <algorithm>
-#include <iostream>
 #include <memory>
 #include <stdexcept>
 #include <string>