diff --git a/ext/dom/dom_iterators.c b/ext/dom/dom_iterators.c
index 9881647e7f6..227cdafd65a 100644
--- a/ext/dom/dom_iterators.c
+++ b/ext/dom/dom_iterators.c
@@ -24,12 +24,11 @@
 #include "php_dom.h"
 #include "dom_ce.h"
 
-typedef struct _nodeIterator nodeIterator;
-struct _nodeIterator {
+typedef struct nodeIterator {
 	int cur;
 	int index;
 	xmlNode *node;
-};
+} nodeIterator;
 
 /* Function pointer typedef changed in 2.9.8, see https://github.com/GNOME/libxml2/commit/e03f0a199a67017b2f8052354cf732b2b4cae787 */
 #if LIBXML_VERSION >= 20908
diff --git a/ext/dom/html_document.c b/ext/dom/html_document.c
index 4021b2386e9..dd6195a3921 100644
--- a/ext/dom/html_document.c
+++ b/ext/dom/html_document.c
@@ -33,13 +33,13 @@
 #define DOM_FALLBACK_ENCODING_NAME "UTF-8"
 #define DOM_FALLBACK_ENCODING_ID LXB_ENCODING_UTF_8
 
-typedef struct _dom_line_column_cache {
+typedef struct dom_line_column_cache {
 	size_t last_line;
 	size_t last_column;
 	size_t last_offset;
 } dom_line_column_cache;
 
-typedef struct _dom_lexbor_libxml2_bridge_application_data {
+typedef struct dom_lexbor_libxml2_bridge_application_data {
 	const char *input_name;
 	const lxb_codepoint_t *current_input_codepoints;
 	const char *current_input_characters;
@@ -49,14 +49,14 @@ typedef struct _dom_lexbor_libxml2_bridge_application_data {
 	bool html_no_implied;
 } dom_lexbor_libxml2_bridge_application_data;
 
-typedef struct _dom_character_encoding_data {
+typedef struct dom_character_encoding_data {
 	const lxb_encoding_data_t *encoding_data;
 	size_t bom_shift;
 } dom_character_encoding_data;
 
 typedef zend_result (*dom_write_output)(void*, const char *, size_t);
 
-typedef struct _dom_output_ctx {
+typedef struct dom_output_ctx {
 	const lxb_encoding_data_t *encoding_data;
 	const lxb_encoding_data_t *decoding_data;
 	lxb_encoding_encode_t *encode;
@@ -67,7 +67,7 @@ typedef struct _dom_output_ctx {
 	dom_write_output write_output;
 } dom_output_ctx;
 
-typedef struct _dom_decoding_encoding_ctx {
+typedef struct dom_decoding_encoding_ctx {
 	/* We can skip some conversion if the input and output encoding are both UTF-8,
 	 * we only have to validate and substitute replacement characters */
 	bool fast_path; /* Put first, near the encode & decode structures, for cache locality */
diff --git a/ext/dom/node.c b/ext/dom/node.c
index 7500f68ab0d..15c9bac1bf2 100644
--- a/ext/dom/node.c
+++ b/ext/dom/node.c
@@ -768,7 +768,7 @@ zend_result dom_node_text_content_write(dom_object *obj, zval *newval)
 
 /* }}} */
 
-static xmlNodePtr _php_dom_insert_fragment(xmlNodePtr nodep, xmlNodePtr prevsib, xmlNodePtr nextsib, xmlNodePtr fragment, dom_object *intern) /* {{{ */
+static xmlNodePtr dom_insert_fragment(xmlNodePtr nodep, xmlNodePtr prevsib, xmlNodePtr nextsib, xmlNodePtr fragment, dom_object *intern) /* {{{ */
 {
 	xmlNodePtr newchild, node;
 
@@ -908,7 +908,7 @@ static void dom_node_insert_before_legacy(zval *return_value, zval *ref, dom_obj
 			}
 		} else if (child->type == XML_DOCUMENT_FRAG_NODE) {
 			xmlNodePtr last = child->last;
-			new_child = _php_dom_insert_fragment(parentp, refp->prev, refp, child, intern);
+			new_child = dom_insert_fragment(parentp, refp->prev, refp, child, intern);
 			dom_reconcile_ns_list(parentp->doc, new_child, last);
 		} else {
 			new_child = xmlAddPrevSibling(refp, child);
@@ -958,7 +958,7 @@ static void dom_node_insert_before_legacy(zval *return_value, zval *ref, dom_obj
 			}
 		} else if (child->type == XML_DOCUMENT_FRAG_NODE) {
 			xmlNodePtr last = child->last;
-			new_child = _php_dom_insert_fragment(parentp, parentp->last, NULL, child, intern);
+			new_child = dom_insert_fragment(parentp, parentp->last, NULL, child, intern);
 			dom_reconcile_ns_list(parentp->doc, new_child, last);
 		} else {
 			new_child = xmlAddChild(parentp, child);
@@ -1176,7 +1176,7 @@ static void dom_node_replace_child(INTERNAL_FUNCTION_PARAMETERS, bool modern)
 		xmlUnlinkNode(oldchild);
 
 		xmlNodePtr last = newchild->last;
-		newchild = _php_dom_insert_fragment(nodep, prevsib, nextsib, newchild, intern);
+		newchild = dom_insert_fragment(nodep, prevsib, nextsib, newchild, intern);
 		if (newchild && !modern) {
 			dom_reconcile_ns_list(nodep->doc, newchild, last);
 		}
@@ -1343,7 +1343,7 @@ static void dom_node_append_child_legacy(zval *return_value, dom_object *intern,
 		php_dom_reconcile_attribute_namespace_after_insertion((xmlAttrPtr) new_child);
 	} else if (child->type == XML_DOCUMENT_FRAG_NODE) {
 		xmlNodePtr last = child->last;
-		new_child = _php_dom_insert_fragment(nodep, nodep->last, NULL, child, intern);
+		new_child = dom_insert_fragment(nodep, nodep->last, NULL, child, intern);
 		dom_reconcile_ns_list(nodep->doc, new_child, last);
 	} else if (child->type == XML_DTD_NODE) {
 		if (nodep->doc->intSubset != NULL) {
diff --git a/ext/dom/nodelist.h b/ext/dom/nodelist.h
index e4a2f41e721..5ac3de1e46c 100644
--- a/ext/dom/nodelist.h
+++ b/ext/dom/nodelist.h
@@ -23,7 +23,7 @@ enum dom_nodelist_dimension_index_type {
 	DOM_NODELIST_DIM_LONG,
 };
 
-typedef struct _dom_nodelist_dimension_index {
+typedef struct dom_nodelist_dimension_index {
 	union {
 		zend_long lval;
 		zend_string *str;