diff --git a/x11/library/mesa/pspec.xml b/x11/library/mesa/pspec.xml
index 3c54a87033..9f0ee8ace0 100644
--- a/x11/library/mesa/pspec.xml
+++ b/x11/library/mesa/pspec.xml
@@ -46,6 +46,7 @@
             <Dependency>eudev-devel</Dependency>
             <Dependency>nettle-devel</Dependency>
             <Dependency>python3-mako</Dependency>
+            <Dependency>libxml2-devel</Dependency>
 <!--             <Dependency>sysprof-devel</Dependency> -->
             <Dependency versionFrom="15.0.7">llvm</Dependency>
             <Dependency versionFrom="15.0.7">compiler-rt</Dependency>