diff --git a/.gitattributes b/.gitattributes
index 90c0ad7c..f1a818d8 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3,7 +3,9 @@
 
 /docs/** linguist-documentation
 
-*.pkl linguist-language=Groovy
+*.pcf linguist-language=Pkl
+PklProject linguist-language=Pkl
+
 * text eol=lf
 *.bat text eol=crlf