diff --git a/src/calibre/test_build.py b/src/calibre/test_build.py
index 7acc36f8a0..5baa9d059f 100644
--- a/src/calibre/test_build.py
+++ b/src/calibre/test_build.py
@@ -107,6 +107,11 @@ def test_unrar():
     test_basic()
     print ('Unrar OK!')
 
+def test_ssl():
+    import ssl
+    ssl
+    print ('SSL OK!')
+
 def test_icu():
     from calibre.utils.icu import _icu_not_ok
     if _icu_not_ok:
@@ -138,6 +143,7 @@ def test_magick():
 def test():
     test_plugins()
     test_lxml()
+    test_ssl()
     test_sqlite()
     test_imaging()
     test_unrar()