diff --git a/Source/WebCore/svg/SVGAllInOne.cpp b/Source/WebCore/svg/SVGAllInOne.cpp
index 15a594e..e1a7417 100644
--- a/Source/WebCore/svg/SVGAllInOne.cpp
+++ b/Source/WebCore/svg/SVGAllInOne.cpp
@@ -112,6 +112,7 @@
 #include "SVGImageLoader.cpp"
 #include "SVGLangSpace.cpp"
 #include "SVGLength.cpp"
+#include "SVGLengthContext.cpp"
 #include "SVGLengthList.cpp"
 #include "SVGLineElement.cpp"
 #include "SVGLinearGradientElement.cpp"