diff --git a/Libraries/LibWeb/CSS/CSSStyleSheet.h b/Libraries/LibWeb/CSS/CSSStyleSheet.h
index 638b3896984..0b8841e48af 100644
--- a/Libraries/LibWeb/CSS/CSSStyleSheet.h
+++ b/Libraries/LibWeb/CSS/CSSStyleSheet.h
@@ -12,7 +12,6 @@
 #include <LibWeb/CSS/CSSRule.h>
 #include <LibWeb/CSS/CSSRuleList.h>
 #include <LibWeb/CSS/CSSStyleRule.h>
-#include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/CSS/StyleSheet.h>
 #include <LibWeb/DOM/Node.h>
 #include <LibWeb/Export.h>
diff --git a/Libraries/LibWeb/CSS/Parser/ArbitrarySubstitutionFunctions.h b/Libraries/LibWeb/CSS/Parser/ArbitrarySubstitutionFunctions.h
index 9805764c9f9..89fa0ceb55a 100644
--- a/Libraries/LibWeb/CSS/Parser/ArbitrarySubstitutionFunctions.h
+++ b/Libraries/LibWeb/CSS/Parser/ArbitrarySubstitutionFunctions.h
@@ -6,7 +6,8 @@
 
 #pragma once
 
-#include <LibWeb/CSS/Parser/Parser.h>
+#include <AK/String.h>
+#include <LibWeb/Forward.h>
 
 namespace Web::CSS::Parser {
 
diff --git a/Libraries/LibWeb/CSS/StyleSheetList.cpp b/Libraries/LibWeb/CSS/StyleSheetList.cpp
index cfa06660cc9..60e785690af 100644
--- a/Libraries/LibWeb/CSS/StyleSheetList.cpp
+++ b/Libraries/LibWeb/CSS/StyleSheetList.cpp
@@ -7,6 +7,7 @@
 
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/Bindings/StyleSheetListPrototype.h>
+#include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/CSS/StyleComputer.h>
 #include <LibWeb/CSS/StyleSheetList.h>
 #include <LibWeb/DOM/Document.h>
diff --git a/Libraries/LibWeb/CSS/StyleValues/UnresolvedStyleValue.cpp b/Libraries/LibWeb/CSS/StyleValues/UnresolvedStyleValue.cpp
index e5b9cf85c3a..74eff902b89 100644
--- a/Libraries/LibWeb/CSS/StyleValues/UnresolvedStyleValue.cpp
+++ b/Libraries/LibWeb/CSS/StyleValues/UnresolvedStyleValue.cpp
@@ -11,6 +11,7 @@
 #include <LibWeb/CSS/CSSUnparsedValue.h>
 #include <LibWeb/CSS/CSSVariableReferenceValue.h>
 #include <LibWeb/CSS/Parser/ArbitrarySubstitutionFunctions.h>
+#include <LibWeb/CSS/Parser/TokenStream.h>
 #include <LibWeb/CSS/PropertyName.h>
 #include <LibWeb/CSS/Serialize.h>
 #include <LibWeb/CSS/StyleValues/UnresolvedStyleValue.h>
diff --git a/Libraries/LibWeb/HTML/Canvas/CanvasShadowStyles.h b/Libraries/LibWeb/HTML/Canvas/CanvasShadowStyles.h
index 0b5afe39934..7d738861d72 100644
--- a/Libraries/LibWeb/HTML/Canvas/CanvasShadowStyles.h
+++ b/Libraries/LibWeb/HTML/Canvas/CanvasShadowStyles.h
@@ -7,7 +7,6 @@
 #pragma once
 
 #include <AK/String.h>
-#include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/HTML/Canvas/CanvasState.h>
 #include <LibWeb/HTML/CanvasGradient.h>
 #include <LibWeb/HTML/CanvasPattern.h>
diff --git a/Libraries/LibWeb/HTML/Canvas/CanvasTextDrawingStyles.cpp b/Libraries/LibWeb/HTML/Canvas/CanvasTextDrawingStyles.cpp
index 1a352653b29..064d45e62a2 100644
--- a/Libraries/LibWeb/HTML/Canvas/CanvasTextDrawingStyles.cpp
+++ b/Libraries/LibWeb/HTML/Canvas/CanvasTextDrawingStyles.cpp
@@ -7,6 +7,7 @@
 
 #include "CanvasTextDrawingStyles.h"
 #include <LibWeb/CSS/ComputedProperties.h>
+#include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/CSS/StyleComputer.h>
 #include <LibWeb/CSS/StyleValues/FontStyleStyleValue.h>
 #include <LibWeb/CSS/StyleValues/LengthStyleValue.h>
diff --git a/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp b/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp
index 09484ccb04e..53ccad4f74b 100644
--- a/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp
+++ b/Libraries/LibWeb/HTML/CanvasRenderingContext2D.cpp
@@ -18,6 +18,7 @@
 #include <LibUnicode/Segmenter.h>
 #include <LibWeb/Bindings/CanvasRenderingContext2DPrototype.h>
 #include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/CSS/PropertyID.h>
 #include <LibWeb/HTML/CanvasRenderingContext2D.h>
 #include <LibWeb/HTML/HTMLCanvasElement.h>
diff --git a/Libraries/LibWeb/HTML/OffscreenCanvasRenderingContext2D.cpp b/Libraries/LibWeb/HTML/OffscreenCanvasRenderingContext2D.cpp
index f44d65c4564..c43dc97c020 100644
--- a/Libraries/LibWeb/HTML/OffscreenCanvasRenderingContext2D.cpp
+++ b/Libraries/LibWeb/HTML/OffscreenCanvasRenderingContext2D.cpp
@@ -11,6 +11,7 @@
 #include <LibUnicode/Segmenter.h>
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/Bindings/OffscreenCanvasRenderingContext2DPrototype.h>
+#include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/CSS/PropertyID.h>
 #include <LibWeb/HTML/HTMLCanvasElement.h>
 #include <LibWeb/HTML/HTMLImageElement.h>
diff --git a/Libraries/LibWeb/SVG/SVGElement.cpp b/Libraries/LibWeb/SVG/SVGElement.cpp
index 7a1cbc49c63..a43af232eeb 100644
--- a/Libraries/LibWeb/SVG/SVGElement.cpp
+++ b/Libraries/LibWeb/SVG/SVGElement.cpp
@@ -10,6 +10,7 @@
 #include <LibWeb/Bindings/Intrinsics.h>
 #include <LibWeb/Bindings/SVGElementPrototype.h>
 #include <LibWeb/CSS/ComputedProperties.h>
+#include <LibWeb/CSS/Parser/Parser.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/ShadowRoot.h>
 #include <LibWeb/SVG/SVGDescElement.h>