diff --git a/google-noto-fonts.spec b/google-noto-fonts.spec
index 35c371c..a1114fd 100644
--- a/google-noto-fonts.spec
+++ b/google-noto-fonts.spec
@@ -750,9 +750,13 @@ local function gentestyaml()
     end
     io.stderr:write("Generating tests.yml...")
     local f = io.open("tests/tests.yml", "w")
-    f:write(yaml)
-    f:close()
-    io.stderr:write("Done!")
+    if f then
+        f:write(yaml)
+	f:close()
+	io.stderr:write("Done!")
+    else
+        io.stderr:write("Unable to open tests.yml")
+    end
 end
 
 local function notopkg(table)