diff --git a/simplejson/encoder.py b/simplejson/encoder.py
index 7b6f4730c547db27709cdb1193da98477f2ade95_c2ltcGxlanNvbi9lbmNvZGVyLnB5..59699461a5bb55b34449d0b7c725153d400ef55c_c2ltcGxlanNvbi9lbmNvZGVyLnB5 100644
--- a/simplejson/encoder.py
+++ b/simplejson/encoder.py
@@ -181,7 +181,7 @@
             else:
                 yield ', '
             yield encoder(key)
-            yield ':'
+            yield ': '
             for chunk in self._iterencode(value, markers):
                 yield chunk
         yield '}'