diff --git a/3rdparty/openexr/IlmImf/ImfAttribute.cpp b/3rdparty/openexr/IlmImf/ImfAttribute.cpp
index 7ac146e015..02738c2679 100644
--- a/3rdparty/openexr/IlmImf/ImfAttribute.cpp
+++ b/3rdparty/openexr/IlmImf/ImfAttribute.cpp
@@ -63,7 +63,7 @@ Attribute::~Attribute () {}
 
 namespace {
 
-struct NameCompare: std::binary_function <const char *, const char *, bool>
+struct NameCompare
 {
     bool
     operator () (const char *x, const char *y) const