diff --git a/var/spack/repos/builtin/packages/warpx/package.py b/var/spack/repos/builtin/packages/warpx/package.py
index 5b13827d25a84e..bc6c9f427641d4 100644
--- a/var/spack/repos/builtin/packages/warpx/package.py
+++ b/var/spack/repos/builtin/packages/warpx/package.py
@@ -364,6 +364,14 @@ class Warpx(CMakePackage, PythonExtension):
         when="@22.06",
     )
 
+    # Fix failing SYCL build (outdated includes & namespaces)
+    # https://github.com/ECP-WarpX/picsar/pull/53
+    patch(
+        "https://github.com/ECP-WarpX/picsar/pull/53.patch?full_index=1",
+        sha256="ff950fbe4e75a71dcc4091c9691307d586169745d6775887d09f46d705705ec4",
+        when="@24.08",
+    )
+
     def cmake_args(self):
         spec = self.spec