diff --git a/tools/psa/README.md b/tools/psa/README.md
index cebeb0808e..3ebf3d3da6 100644
--- a/tools/psa/README.md
+++ b/tools/psa/README.md
@@ -34,14 +34,16 @@ Each implementation requires a set of autogenerated files describing the secure
 `release.py` is the script assigned with compiling the secure images:
 
 ```
-usage: release.py [-h] [-m MCU]
+usage: release.py [-h] [-m MCU] [-d]
 
 optional arguments:
   -h, --help         show this help message and exit
   -m MCU, --mcu MCU  build for the given MCU
+  -d, --debug        set build profile to debug
 ```
 
-When `MCU ` is not specified, the script compiles all the images for all the targets.
+* When `MCU ` is not specified, the script compiles all the images for all the targets.
+* When `-d/--debug` is not specified, the script compiles the images using the release profile.
 
 This script should be run in following scenarios:
 
diff --git a/tools/psa/release.py b/tools/psa/release.py
index ebd1777a11..987bd37ce2 100644
--- a/tools/psa/release.py
+++ b/tools/psa/release.py
@@ -132,7 +132,7 @@ def get_parser():
                         metavar="MCU")
 
     parser.add_argument("-d", "--debug",
-                        help="build for the given MCU",
+                        help="set build profile to debug",
                         action="store_true",
                         default=False)