diff --git a/src/OpenMesh/Core/IO/reader/STLReader.cc b/src/OpenMesh/Core/IO/reader/STLReader.cc
index 9ed41bc7..f804be65 100644
--- a/src/OpenMesh/Core/IO/reader/STLReader.cc
+++ b/src/OpenMesh/Core/IO/reader/STLReader.cc
@@ -55,6 +55,7 @@
 
 #include <float.h>
 #include <fstream>
+#include <cstring>
 
 // OpenMesh
 #include <OpenMesh/Core/IO/BinaryHelper.hh>