diff --git a/src/mintpy/cli/save_gbis.py b/src/mintpy/cli/save_gbis.py
index 6c96fb576..9ec457054 100755
--- a/src/mintpy/cli/save_gbis.py
+++ b/src/mintpy/cli/save_gbis.py
@@ -26,7 +26,7 @@
   save_gbis.py 20150223_20161031_msk.unw -g inputs/geometryGeo.h5 -o Alos2DT23_20150223_20161031.mat
   save_gbis.py 20150223_20161031_msk.unw -g inputs/geometryGeo.h5 --out-dir ../Model/data --ellipsoid2geoid
 
-  #for non-veloicty dataset, e.g. step or annualAmplitude
+  #for non-velocity dataset, e.g. step or annualAmplitude
   save_gbis.py velocity.h5 step20080221    -o AlosDT73_step20080221.mat
   save_gbis.py velocity.h5 annualAmplitude -o AlosDT73_annualAmplitude.mat
 """
diff --git a/src/mintpy/cli/save_roipac.py b/src/mintpy/cli/save_roipac.py
index 86507ac37..968a2cd6f 100755
--- a/src/mintpy/cli/save_roipac.py
+++ b/src/mintpy/cli/save_roipac.py
@@ -16,7 +16,7 @@
   #for velocity: output an interferogram with temporal baseline in DATE12 metadata
   save_roipac.py  velocity.h5
   save_roipac.py  velocity.h5 -m maskTempCoh.h5 maskAoiShinmoe.h5
-  #for non-veloicty dataset, e.g. step or annualAmplitude
+  #for non-velocity dataset, e.g. step or annualAmplitude
   save_roipac.py  velocity.h5  step20080221
   save_roipac.py  velocity.h5  annualAmplitude