diff --git a/common/io/kicad/kicad_io_utils.cpp b/common/io/kicad/kicad_io_utils.cpp
index 6bca79dc48..2bb856f6fa 100644
--- a/common/io/kicad/kicad_io_utils.cpp
+++ b/common/io/kicad/kicad_io_utils.cpp
@@ -229,6 +229,9 @@ void Prettify( std::string& aSource, char aQuoteChar )
         ++cursor;
     }
 
+    // newline required at end of line / file for POSIX compliance. Keeps git diffs clean.
+    formatted += '\n';
+
     aSource = std::move( formatted );
 }