diff --git a/pyproject.toml b/pyproject.toml
index 8cb5e5f..1041e4c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "rda_python_common"
-version = "1.0.13"
+version = "1.0.14"
 authors = [
   { name="Zaihua Ji", email="zji@ucar.edu" },
 ]
diff --git a/src/rda_python_common/PgLOG.py b/src/rda_python_common/PgLOG.py
index e02cb24..72363a4 100644
--- a/src/rda_python_common/PgLOG.py
+++ b/src/rda_python_common/PgLOG.py
@@ -541,6 +541,13 @@ def pgtrim(line, rmcmt = 1):
 
    return line
 
+#
+# set PGLOG['PUSGDIR'] from the program file with full path
+#
+def set_help_path(progfile):
+   
+   PGLOG['PUSGDIR'] = op.dirname(op.abspath(progfile))
+   
 #
 # Function: show_usage(progname: Perl program name to get file "progname.usg")
 #
@@ -549,7 +556,8 @@ def pgtrim(line, rmcmt = 1):
 #
 def show_usage(progname, opts = None):
 
-   usgname = PGLOG['PUSGDIR'] + '/' + progname + '.usg'
+   usgname = join_paths(PGLOG['PUSGDIR'], progname + '.usg')
+
    if opts:
       # show usage for individual option of dsarch
       for opt in opts: