diff --git a/all.sas b/all.sas
index 3c772c4..d382c14 100644
--- a/all.sas
+++ b/all.sas
@@ -3472,7 +3472,8 @@ data datalines_2;
     * binary data must be converted, to store in text format.  It is identified
     * by the presence of the $HEX keyword in the format.
     */
-  else if upcase(format)=:'$HEX' then dataline=cats('put(',name,',',format,')');
+  else if upcase(format)=:'$HEX' then
+    dataline=cats('put(trim(',name,'),',format,')');
   else dataline=name;
 run;
 
diff --git a/base/mp_ds2cards.sas b/base/mp_ds2cards.sas
index 6318f43..cdfe72f 100644
--- a/base/mp_ds2cards.sas
+++ b/base/mp_ds2cards.sas
@@ -159,7 +159,8 @@ data datalines_2;
     * binary data must be converted, to store in text format.  It is identified
     * by the presence of the $HEX keyword in the format.
     */
-  else if upcase(format)=:'$HEX' then dataline=cats('put(',name,',',format,')');
+  else if upcase(format)=:'$HEX' then
+    dataline=cats('put(trim(',name,'),',format,')');
   else dataline=name;
 run;