diff --git a/action.yml b/action.yml
index 0e76cfa..3063b32 100644
--- a/action.yml
+++ b/action.yml
@@ -39,7 +39,7 @@ runs:
         # Compress the input paths into a zip archive
         # (note: busybox' mktemp doesn't have the --suffix option)
         MYUPLOAD="$( mktemp -u ).zip"
-        if [ "${{ inputs.compression }}" == "true" ]; then
+        if [ "${{ inputs.compression }}" = "true" ]; then
           # inputs.path can be a list of files (with wildcards and spaces) and
           # the shell's command substitution + field splitting + pathname
           # expansion gives a behaviour pretty close to the original Github's
@@ -55,6 +55,7 @@ runs:
         # available 'sed' in order to help this code being more easily reusable
         # (at the cost of and breaking if the JSON formating happens to change,
         # and readability...)
+        printenv
 
         # First we extract the second field from the token (e.g. xxx.yyy.zzz),
         # then we de-base64 and last, we extract the two id from