diff --git a/npm2deb/__init__.py b/npm2deb/__init__.py
index a5cc54d..552d7f6 100644
--- a/npm2deb/__init__.py
+++ b/npm2deb/__init__.py
@@ -425,10 +425,11 @@ def _get_Depends(self):
                     mapper.append_warning('error', dep, 'dependency %s '
                                           'not in debian' % (name))
                 version = dependencies[dep].replace('~', '')
-                if version[0].isdigit():
-                    version = '>= %s' % version
-                elif version == '*' or version == 'latest':
-                    version = None
+                if version:
+                    if version[0].isdigit():
+                        version = '>= %s' % version
+                    elif version == '*' or version == 'latest':
+                        version = None
                 if version:
                     dep_debian = "%s (%s)" % (name, version)
                 else:
diff --git a/tests/npm_coherence.py b/tests/npm_coherence.py
index a3d59d1..7b1ec48 100644
--- a/tests/npm_coherence.py
+++ b/tests/npm_coherence.py
@@ -135,6 +135,11 @@ def test_install_bin(self):
         line = self._get_debfile_line('links', 'mocha')
         self.assertTrue(line == 'usr/lib/nodejs/mocha/bin/mocha usr/bin/mocha')
 
+    def issue_10(self):
+        n = Npm2Deb('lastfm')
+        n.create_base_debian()
+        n.create_control()
+
 
 if __name__ == '__main__':
     unittest.main()