--- a/parser.c	2017-05-11 09:46:59.227102287 +0200
+++ b/parser.c	2017-05-11 09:47:07.854898587 +0200
@@ -5180,10 +5180,6 @@
 		      "xmlParsePITarget: invalid name prefix 'xml'\n",
 		      NULL, NULL);
     }
-    if ((name != NULL) && (xmlStrchr(name, ':') != NULL)) {
-	xmlNsErr(ctxt, XML_NS_ERR_COLON,
-		 "colons are forbidden from PI names '%s'\n", name, NULL, NULL);
-    }
     return(name);
 }
 
