diff --git a/parm/config/gfs/config.base.emc.dyn b/parm/config/gfs/config.base.emc.dyn
index 9c9776b538..ddb1b1ba90 100644
--- a/parm/config/gfs/config.base.emc.dyn
+++ b/parm/config/gfs/config.base.emc.dyn
@@ -386,7 +386,7 @@ export netcdf_diag=".true."
 export binary_diag=".false."
 
 # Tracker/genesis package location
-export HOMEens_tracker=${BASE_GIT}/TC_tracker/${tracker_ver}
+export HOMEens_tracker=${BASE_GIT}/TC_tracker/${ens_tracker_ver:-}
 
 # Verification options
 export DO_METP="YES"         # Run METPLUS jobs - set METPLUS settings in config.metp
diff --git a/versions/run.hera.ver b/versions/run.hera.ver
index 471e019dcd..2c5ff92e3a 100644
--- a/versions/run.hera.ver
+++ b/versions/run.hera.ver
@@ -24,5 +24,5 @@ export wgrib2_ver=2.0.8
 export obsproc_run_ver=1.1.2
 export prepobs_run_ver=1.0.1
 
-export tracker_ver=feature-GFSv17_com_reorg
+export ens_tracker_ver=feature-GFSv17_com_reorg
 export fit2obs_ver=1.0.0
diff --git a/versions/run.jet.ver b/versions/run.jet.ver
index 3cab138a1a..c016e7352b 100644
--- a/versions/run.jet.ver
+++ b/versions/run.jet.ver
@@ -26,5 +26,5 @@ export anaconda_ver=5.3.1
 export obsproc_run_ver=1.1.2
 export prepobs_run_ver=1.0.1
 
-export tracker_ver=feature-GFSv17_com_reorg
+export ens_tracker_ver=feature-GFSv17_com_reorg
 export fit2obs_ver=1.0.0
diff --git a/versions/run.orion.ver b/versions/run.orion.ver
index 80a05580cf..1b1400384e 100644
--- a/versions/run.orion.ver
+++ b/versions/run.orion.ver
@@ -23,5 +23,5 @@ export wgrib2_ver=2.0.8
 export obsproc_run_ver=1.1.2
 export prepobs_run_ver=1.0.1
 
-export tracker_ver=feature-GFSv17_com_reorg
+export ens_tracker_ver=feature-GFSv17_com_reorg
 export fit2obs_ver=1.0.0
diff --git a/versions/run.s4.ver b/versions/run.s4.ver
index 966c86fe01..25d4ed6bea 100644
--- a/versions/run.s4.ver
+++ b/versions/run.s4.ver
@@ -23,5 +23,5 @@ export wgrib2_ver=2.0.8
 export obsproc_run_ver=1.1.2
 export prepobs_run_ver=1.0.1
 
-export tracker_ver=feature-GFSv17_com_reorg
+export ens_tracker_ver=feature-GFSv17_com_reorg
 export fit2obs_ver=1.0.0
diff --git a/versions/run.wcoss2.ver b/versions/run.wcoss2.ver
index 13e64a22df..959d0c5f0a 100644
--- a/versions/run.wcoss2.ver
+++ b/versions/run.wcoss2.ver
@@ -45,5 +45,5 @@ export wgrib2_ver=2.0.8
 export obsproc_run_ver=1.1.2
 export prepobs_run_ver=1.0.1
 
-export tracker_ver=feature-GFSv17_com_reorg
+export ens_tracker_ver=feature-GFSv17_com_reorg
 export fit2obs_ver=1.0.0