diff --git a/src/lib/OpenEXR/ImfInt64.h b/src/lib/OpenEXR/ImfInt64.h
index 7827adba79..4b77960f90 100644
--- a/src/lib/OpenEXR/ImfInt64.h
+++ b/src/lib/OpenEXR/ImfInt64.h
@@ -19,10 +19,10 @@
 
 OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
 
-IMATH_DEPRECATED("use int64_t")
+IMATH_DEPRECATED("use uint64_t")
 typedef IMATH_NAMESPACE::Int64 Int64;
 
-IMATH_DEPRECATED("use sint64_t")
+IMATH_DEPRECATED("use int64_t")
 typedef IMATH_NAMESPACE::SInt64 SInt64;
 
 OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT