diff --git a/packages/geant4/package.py b/packages/geant4/package.py
index ca467f71..524469e2 100644
--- a/packages/geant4/package.py
+++ b/packages/geant4/package.py
@@ -11,3 +11,7 @@ class Geant4(BuiltinGeant4):
     version("11.1.1.east", git="https://github.com/eic/geant4", branch="east-v11.1.1")
 
     patch("G4LogicalSkinSurface.patch", when="@11.2")
+
+    ## Fix commands in /particle/property/decay/
+    patch("https://github.com/Geant4/geant4/commit/e32bc92498d87fb42829b08348d7fad89bc89404.diff?full_index=1",
+          sha256="a63b098f3214eaf4b5f34b3e434603b1cdbd13c919456782e933cd7422a45d99")