diff --git a/Libraries/LibWeb/DOM/AttributeNames.cpp b/Libraries/LibWeb/DOM/AttributeNames.cpp
index 3a5b0de38a..7d0efad171 100644
--- a/Libraries/LibWeb/DOM/AttributeNames.cpp
+++ b/Libraries/LibWeb/DOM/AttributeNames.cpp
@@ -34,7 +34,7 @@ namespace AttributeNames {
 ENUMERATE_HTML_ATTRIBUTES
 #undef __ENUMERATE_HTML_ATTRIBUTE
 
-void initialize()
+[[gnu::constructor]] static void initialize()
 {
     static bool s_initialized = false;
     if (s_initialized)
diff --git a/Libraries/LibWeb/DOM/AttributeNames.h b/Libraries/LibWeb/DOM/AttributeNames.h
index 9ffa580416..f4914fd9ad 100644
--- a/Libraries/LibWeb/DOM/AttributeNames.h
+++ b/Libraries/LibWeb/DOM/AttributeNames.h
@@ -32,8 +32,6 @@ namespace Web {
 namespace HTML {
 namespace AttributeNames {
 
-void initialize();
-
 #define ENUMERATE_HTML_ATTRIBUTES               \
     __ENUMERATE_HTML_ATTRIBUTE(abbr)            \
     __ENUMERATE_HTML_ATTRIBUTE(accept)          \
diff --git a/Libraries/LibWeb/DOM/Document.cpp b/Libraries/LibWeb/DOM/Document.cpp
index 0a762d6200..ffb5eecb97 100644
--- a/Libraries/LibWeb/DOM/Document.cpp
+++ b/Libraries/LibWeb/DOM/Document.cpp
@@ -68,10 +68,6 @@ Document::Document(const URL& url)
     , m_url(url)
     , m_window(Window::create_with_document(*this))
 {
-    HTML::AttributeNames::initialize();
-    HTML::TagNames::initialize();
-    SVG::TagNames::initialize();
-
     m_style_update_timer = Core::Timer::create_single_shot(0, [this] {
         update_style();
     });
diff --git a/Libraries/LibWeb/DOM/TagNames.cpp b/Libraries/LibWeb/DOM/TagNames.cpp
index bcc8a724bb..7415a0fa33 100644
--- a/Libraries/LibWeb/DOM/TagNames.cpp
+++ b/Libraries/LibWeb/DOM/TagNames.cpp
@@ -34,7 +34,7 @@ namespace TagNames {
 ENUMERATE_HTML_TAGS
 #undef __ENUMERATE_HTML_TAG
 
-void initialize()
+[[gnu::constructor]] static void initialize()
 {
     static bool s_initialized = false;
     if (s_initialized)
diff --git a/Libraries/LibWeb/DOM/TagNames.h b/Libraries/LibWeb/DOM/TagNames.h
index 7db11b7107..2d58060e99 100644
--- a/Libraries/LibWeb/DOM/TagNames.h
+++ b/Libraries/LibWeb/DOM/TagNames.h
@@ -32,8 +32,6 @@ namespace Web {
 namespace HTML {
 namespace TagNames {
 
-void initialize();
-
 #define ENUMERATE_HTML_TAGS          \
     __ENUMERATE_HTML_TAG(a)          \
     __ENUMERATE_HTML_TAG(abbr)       \
diff --git a/Libraries/LibWeb/SVG/TagNames.cpp b/Libraries/LibWeb/SVG/TagNames.cpp
index 0ebb623521..56935e35ea 100644
--- a/Libraries/LibWeb/SVG/TagNames.cpp
+++ b/Libraries/LibWeb/SVG/TagNames.cpp
@@ -32,7 +32,7 @@ namespace Web::SVG::TagNames {
     ENUMERATE_SVG_TAGS
 #undef __ENUMERATE_SVG_TAG
 
-void initialize()
+[[gnu::constructor]] static void initialize()
 {
     static bool s_initialized = false;
     if (s_initialized)
diff --git a/Libraries/LibWeb/SVG/TagNames.h b/Libraries/LibWeb/SVG/TagNames.h
index 85f74bfe3b..9ec972ccba 100644
--- a/Libraries/LibWeb/SVG/TagNames.h
+++ b/Libraries/LibWeb/SVG/TagNames.h
@@ -30,8 +30,6 @@
 
 namespace Web::SVG::TagNames {
 
-void initialize();
-
 #define ENUMERATE_SVG_GRAPHICS_TAGS  \
     __ENUMERATE_SVG_TAG(svg)         \
     __ENUMERATE_SVG_TAG(path)        \