diff --git a/gis/polyline/README b/gis/polyline/README
index b83d80d936..ec484299f6 100644
--- a/gis/polyline/README
+++ b/gis/polyline/README
@@ -1,2 +1,2 @@
-polyline is a Python implementation of Google’s Encoded Polyline Algorithm
+polyline is a Python implementation of Google's Encoded Polyline Algorithm
 Format built with Python 2 and 3 support in mind.
diff --git a/gis/polyline/slack-desc b/gis/polyline/slack-desc
index 385024cf3e..546516cc0a 100644
--- a/gis/polyline/slack-desc
+++ b/gis/polyline/slack-desc
@@ -8,7 +8,7 @@
         |-----handy-ruler------------------------------------------------------|
 polyline: polyline (Python implementation of Encoded Polyline Algorithm)
 polyline: 
-polyline: polyline is a Python implementation of Google’s Encoded Polyline
+polyline: polyline is a Python implementation of Google's Encoded Polyline
 polyline: Algorithm Format built with Python 2 and 3 support in mind.
 polyline: 
 polyline: