diff --git a/math/libmesh/files/patch-include_systems_parameter__accessor.h b/math/libmesh/files/patch-include_systems_parameter__accessor.h
new file mode 100644
index 000000000000..a47628127f22
--- /dev/null
+++ b/math/libmesh/files/patch-include_systems_parameter__accessor.h
@@ -0,0 +1,18 @@
+--- include/systems/parameter_accessor.h.orig	2024-11-04 03:11:10 UTC
++++ include/systems/parameter_accessor.h
+@@ -112,13 +112,14 @@ class ParameterProxy (public)
+   /**
+    * Setter: change the value of the parameter we access.
+    */
++#if 0 // fix build with clang-19: https://github.com/libMesh/libmesh/issues/3991
+   ParameterProxy & operator = (const ParameterProxy<T> & new_value) { _accessor.set(new_value.get()); }
+ 
+   /**
+    * Setter: change the value of the parameter we access.
+    */
+   ParameterProxy & operator = (const ConstParameterProxy<T> & new_value) { _accessor.set(new_value.get()); return *this; }
+-
++#endif
+   /**
+    * Setter: change the value of the parameter we access.
+    */