diff --git a/DEF-files/SHMS/GEN/pstackana.def b/DEF-files/SHMS/GEN/pstackana.def
index 860c9d4750c2c76fe48a0158b3b7e07368c86128..7d17266a186df9a1ffcbacc6ab4f41b1f5ad7823 100644
--- a/DEF-files/SHMS/GEN/pstackana.def
+++ b/DEF-files/SHMS/GEN/pstackana.def
@@ -8,7 +8,7 @@ block P.hod.*
 block P.hgcer.*
 block P.aero.*
 block P.cal.*
-#block P.gtr.*
+block P.gtr.*
 
 # Noble Gas Cherenkov
 TH1F pngcer_occu 'SHMS Noble Gas Cherenkov Occupancy; Counter Number; Number of Entries' P.ngcer.adcCounter 4 0.5 4.5