diff --git a/appveyor.yml b/appveyor.yml
index c8de0d7..7ac03b5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -29,12 +29,14 @@ build_script:
       cd /c/projects/utf8proc &&
       mkdir mingw_static &&
       cd mingw_static &&
-      cmake .. -DCMAKE_VERBOSE_MAKEFILE=ON -G'MSYS Makefiles' &&
+      cmake .. -DCMAKE_VERBOSE_MAKEFILE=ON -DUTF8PROC_ENABLE_TESTING=On -G'MSYS Makefiles' &&
       make &&
+      ctest &&
       mkdir ../mingw_shared &&
       cd ../mingw_shared &&
-      cmake .. -DCMAKE_VERBOSE_MAKEFILE=ON -DBUILD_SHARED_LIBS=ON -G'MSYS Makefiles' &&
-      make
+      cmake .. -DCMAKE_VERBOSE_MAKEFILE=ON -DBUILD_SHARED_LIBS=ON -DUTF8PROC_ENABLE_TESTING=On -G'MSYS Makefiles' &&
+      make &&
+      ctest
       "
 
 on_finish: