diff --git a/src/dom/sgml/parser.c b/src/dom/sgml/parser.c
index 2602028e2..70903fc59 100644
--- a/src/dom/sgml/parser.c
+++ b/src/dom/sgml/parser.c
@@ -151,9 +151,7 @@ parse_sgml_attributes(struct dom_stack *stack, struct dom_scanner *scanner)
 
 	assert(dom_scanner_has_tokens(scanner)
 	       && (get_dom_scanner_token(scanner)->type == SGML_TOKEN_ELEMENT_BEGIN
-	           || (get_dom_stack_top(stack)->node->type == DOM_NODE_PROCESSING_INSTRUCTION
-	       	       && get_dom_stack_top(stack)->node->data.proc_instruction.type
-		          == DOM_PROC_INSTRUCTION_XML)));
+	           || (get_dom_stack_top(stack)->node->type == DOM_NODE_PROCESSING_INSTRUCTION)));
 
 	if (get_dom_scanner_token(scanner)->type == SGML_TOKEN_ELEMENT_BEGIN)
 		skip_dom_scanner_token(scanner);
@@ -279,6 +277,7 @@ parse_sgml_plain(struct dom_stack *stack, struct dom_scanner *scanner)
 			skip_dom_scanner_token(scanner);
 			break;
 
+		case SGML_TOKEN_PROCESS_XML_STYLESHEET:
 		case SGML_TOKEN_PROCESS_XML:
 		case SGML_TOKEN_PROCESS:
 			copy_struct(&target, token);
@@ -290,7 +289,8 @@ parse_sgml_plain(struct dom_stack *stack, struct dom_scanner *scanner)
 			assert(token->type == SGML_TOKEN_PROCESS_DATA);
 
 			if (add_sgml_proc_instruction(stack, &target, token)
-			    && target.type == SGML_TOKEN_PROCESS_XML
+			    && (target.type == SGML_TOKEN_PROCESS_XML
+			        || target.type == SGML_TOKEN_PROCESS_XML_STYLESHEET)
 			    && token->string.length > 0) {
 				/* Parse the <?xml data="attributes"?>. */
 				struct dom_scanner attr_scanner;
diff --git a/src/dom/sgml/scanner.c b/src/dom/sgml/scanner.c
index 8a51aab86..65a04752c 100644
--- a/src/dom/sgml/scanner.c
+++ b/src/dom/sgml/scanner.c
@@ -47,13 +47,14 @@ static struct dom_scan_table_info sgml_scan_table_info[] = {
 	{ INIT_DOM_STRING(str, -1), SGML_TOKEN_##type, SGML_TOKEN_##family }
 
 static struct dom_scanner_string_mapping sgml_string_mappings[] = {
-	SGML_STRING_MAP("--",		NOTATION_COMMENT,	NOTATION),
-	SGML_STRING_MAP("ATTLIST",	NOTATION_ATTLIST,	NOTATION),
-	SGML_STRING_MAP("DOCTYPE",	NOTATION_DOCTYPE,	NOTATION),
-	SGML_STRING_MAP("ELEMENT",	NOTATION_ELEMENT,	NOTATION),
-	SGML_STRING_MAP("ENTITY",	NOTATION_ENTITY,	NOTATION),
+	SGML_STRING_MAP("--",		  NOTATION_COMMENT,	  NOTATION),
+	SGML_STRING_MAP("ATTLIST",	  NOTATION_ATTLIST,	  NOTATION),
+	SGML_STRING_MAP("DOCTYPE",	  NOTATION_DOCTYPE,	  NOTATION),
+	SGML_STRING_MAP("ELEMENT",	  NOTATION_ELEMENT,	  NOTATION),
+	SGML_STRING_MAP("ENTITY",	  NOTATION_ENTITY,	  NOTATION),
 
-	SGML_STRING_MAP("xml",		PROCESS_XML,		PROCESS),
+	SGML_STRING_MAP("xml",		  PROCESS_XML,		  PROCESS),
+	SGML_STRING_MAP("xml-stylesheet", PROCESS_XML_STYLESHEET, PROCESS),
 
 	DOM_STRING_MAP_END,
 };
diff --git a/src/dom/sgml/scanner.h b/src/dom/sgml/scanner.h
index 9abe59e32..492cb2640 100644
--- a/src/dom/sgml/scanner.h
+++ b/src/dom/sgml/scanner.h
@@ -29,6 +29,7 @@ enum sgml_token_type {
 
 	SGML_TOKEN_PROCESS,		/* <?{ident} */
 	SGML_TOKEN_PROCESS_XML,		/* <?xml */
+	SGML_TOKEN_PROCESS_XML_STYLESHEET,/* <?xml-stylesheet */
 	SGML_TOKEN_PROCESS_DATA,	/* data after <?{ident} until ?> */
 
 	SGML_TOKEN_ELEMENT,		/* <{ident}> */
diff --git a/src/dom/test/test-sgml-parser-basic b/src/dom/test/test-sgml-parser-basic
index 58635e8eb..6805861ec 100755
--- a/src/dom/test/test-sgml-parser-basic
+++ b/src/dom/test/test-sgml-parser-basic
@@ -148,7 +148,6 @@ entity-reference: #
 #text: -
 entity-reference: #xx'
 
-# Test <?>
 test_output_equals \
 'Parse processing instructions.' \
 '<?xml encoding="UTF8"?>
@@ -170,6 +169,14 @@ proc-instruction: xml -> version="1.0" />
   attribute: version -> 1.0
 proc-instruction: xml -> /'
 
+test_output_equals \
+'Parse XML stylesheet processing instructions.' \
+'<?xml-stylesheet type="text/xsl" href="url"?>' \
+'
+proc-instruction: xml-stylesheet -> type="text/xsl" href="url"
+  attribute: type -> text/xsl
+  attribute: href -> url'
+
 test_output_equals \
 'Parse exotic processing instructions.' \
 '<?xml ?+>+?>-?>-<?js?>-<??>-' \