diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ab8428e..500ebf44 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -72,6 +72,7 @@ Developers may need to change their code
 
 ### Corrected Bugs
 
+* Fixed typo: [False Header Content_type in restconf error #152](https://github.com/clicon/clixon/issues/152)
 * Added message-id attributes in error and hello replies
   * See [namespace prefix nc is not supported in full #154](https://github.com/clicon/clixon/issues/154)
 * Fixed [Clixon backend generates wrong XML on empty string value #144](https://github.com/clicon/clixon/issues/144)
diff --git a/apps/restconf/restconf_err.c b/apps/restconf/restconf_err.c
index 6e38891a..8839b878 100644
--- a/apps/restconf/restconf_err.c
+++ b/apps/restconf/restconf_err.c
@@ -427,7 +427,7 @@ api_return_err(clicon_handle h,
 	if ((code = restconf_err2code(tagstr)) < 0)
 	    code = 500; /* internal server error */
     }  
-    if (restconf_reply_header(req, "Content_Type", "%s", restconf_media_int2str(media)) < 0)
+    if (restconf_reply_header(req, "Content-Type", "%s", restconf_media_int2str(media)) < 0) // XXX
 	goto done;
     switch (media){
     case YANG_DATA_XML: