diff --git a/mercurial/narrowspec.py b/mercurial/narrowspec.py
--- a/mercurial/narrowspec.py
+++ b/mercurial/narrowspec.py
@@ -165,9 +165,15 @@
     if profiles:
         raise error.Abort(_("including other spec files using '%include' is not"
                             " suported in narrowspec"))
+
+    validatepatterns(includepats)
+    validatepatterns(excludepats)
+
     return includepats, excludepats
 
 def save(repo, includepats, excludepats):
+    validatepatterns(includepats)
+    validatepatterns(excludepats)
     spec = format(includepats, excludepats)
     repo.svfs.write(FILENAME, spec)
 
diff --git a/tests/test-narrow-patterns.t b/tests/test-narrow-patterns.t
--- a/tests/test-narrow-patterns.t
+++ b/tests/test-narrow-patterns.t
@@ -437,3 +437,29 @@
   $ hg tracked --addexclude set:ignored
   abort: narrow pattern must begin with the following prefixes: path:, rootfilesin:; got set:ignored
   [255]
+
+  $ cat .hg/store/narrowspec
+  [include]
+  path:dir1
+  path:dir1/dirA
+  [exclude]
+
+  $ cat > .hg/store/narrowspec << EOF
+  > [include]
+  > glob:**
+  > EOF
+
+  $ hg tracked
+  abort: narrow pattern must begin with the following prefixes: path:, rootfilesin:; got glob:**
+  [255]
+
+  $ cat > .hg/store/narrowspec << EOF
+  > [include]
+  > path:.
+  > [exclude]
+  > set:ignored
+  > EOF
+
+  $ hg tracked
+  abort: narrow pattern must begin with the following prefixes: path:, rootfilesin:; got set:ignored
+  [255]