diff --git a/Modules/ThirdParty/PNG/src/itkpng/.gitattributes b/Modules/ThirdParty/PNG/src/itkpng/.gitattributes
new file mode 100644
index 00000000000..562b12e16eb
--- /dev/null
+++ b/Modules/ThirdParty/PNG/src/itkpng/.gitattributes
@@ -0,0 +1 @@
+* -whitespace