diff --git a/var/spack/repos/builtin/packages/pdal/package.py b/var/spack/repos/builtin/packages/pdal/package.py
index e2a47cdddc9..76f53662986 100644
--- a/var/spack/repos/builtin/packages/pdal/package.py
+++ b/var/spack/repos/builtin/packages/pdal/package.py
@@ -34,7 +34,7 @@ class Pdal(CMakePackage):
     depends_on("proj@4.9.3:")
 
     # https://github.com/PDAL/PDAL/issues/3826
-    patch("stdcppfs.patch", when="@:2.6.1 %gcc@:8")
+    patch("stdcppfs.patch", when="@:2.4 %gcc@:8")
     msg = "a new stdc++fs patch is needed for version 2.6.2 onwards with gcc@8 or older"
     conflicts("%gcc@:8", when="@2.6.2:", msg=msg)