diff --git a/appveyor.yml b/appveyor.yml
index 3b7d31b9..fdd34c67 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -24,6 +24,7 @@ environment:
       generator: "MinGW Makefiles"
       cxx_path: 'C:\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin'
       cxx_options: "-std=gnu++11"
+      enabled_on_pr: yes
 
     - compiler: gcc-6.3.0-posix
       generator: "MinGW Makefiles"