diff --git a/tools/flags/SkCommonFlags.cpp b/tools/flags/SkCommonFlags.cpp
index dfacdbe..be569f8 100644
--- a/tools/flags/SkCommonFlags.cpp
+++ b/tools/flags/SkCommonFlags.cpp
@@ -161,7 +161,7 @@
 
 DEFINE_bool(noGS, false, "Disables support for geometry shaders.");
 
-DEFINE_string(pr, "",
+DEFINE_string(pr, "all",
               "Set of enabled gpu path renderers. Defined as a list of: "
               "[~]none [~]dashline [~]nvpr [~]ccpr [~]aahairline [~]aaconvex [~]aalinearizing "
               "[~]small [~]tess] [~]all");