diff --git a/builder/main.py b/builder/main.py
index 0cce148d..b75527ef 100644
--- a/builder/main.py
+++ b/builder/main.py
@@ -208,9 +208,14 @@ def _jlink_cmd_script(env, source):
     vid = hwids[0][0]
     pid = hwids[0][1]
 
-    # default tool for all boards with embedded DFU bootloader over USB
-    _upload_tool = '"%s"' % join(platform.get_package_dir(
-        "tool-dfuutil") or "", "bin", "dfu-util")
+    if env.subst("$BOARD").startswith(("portenta", "opta", "nicla")):
+        _upload_tool = '"%s"' % join(platform.get_package_dir(
+            "tool-dfuutil-arduino") or "", "dfu-util")
+    else:
+        # default tool for all boards with embedded DFU bootloader over USB
+        _upload_tool = '"%s"' % join(platform.get_package_dir(
+            "tool-dfuutil") or "", "bin", "dfu-util")
+
     _upload_flags = [
         "-d", ",".join(["%s:%s" % (hwid[0], hwid[1]) for hwid in hwids]),
         "-a", "0", "-s",
@@ -220,7 +225,7 @@ def _jlink_cmd_script(env, source):
     upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]
 
     if "arduino" in frameworks:
-        if env.subst("$BOARD").startswith(("portenta", "opta")):
+        if env.subst("$BOARD").startswith(("portenta", "opta", "nicla")):
             upload_actions.insert(
                 0,
                 env.VerboseAction(BeforeUpload, "Looking for upload port...")
@@ -245,17 +250,18 @@ def __configure_upload_port(env):
                                      "Looking for upload port..."))
 
     if "dfu-util" in _upload_tool:
-        # Add special DFU header to the binary image
-        env.AddPostAction(
-            join("$BUILD_DIR", "${PROGNAME}.bin"),
-            env.VerboseAction(
-                " ".join([
-                    '"%s"' % join(platform.get_package_dir("tool-dfuutil") or "",
-                         "bin", "dfu-suffix"),
-                    "-v %s" % vid,
-                    "-p %s" % pid,
-                    "-d 0xffff", "-a", "$TARGET"
-                ]), "Adding dfu suffix to ${PROGNAME}.bin"))
+        if not env.subst("$BOARD").startswith(("portenta", "opta", "nicla")):
+            # Add special DFU header to the binary image
+            env.AddPostAction(
+                join("$BUILD_DIR", "${PROGNAME}.bin"),
+                env.VerboseAction(
+                    " ".join([
+                        '"%s"' % join(platform.get_package_dir("tool-dfuutil") or "",
+                             "bin", "dfu-suffix"),
+                        "-v %s" % vid,
+                        "-p %s" % pid,
+                        "-d 0xffff", "-a", "$TARGET"
+                    ]), "Adding dfu suffix to ${PROGNAME}.bin"))
 
     env.Replace(
         UPLOADER=_upload_tool,
diff --git a/platform.json b/platform.json
index f68f3b5a..e984f004 100644
--- a/platform.json
+++ b/platform.json
@@ -324,6 +324,12 @@
       "owner": "platformio",
       "version": "~1.11.0"
     },
+    "tool-dfuutil-arduino": {
+      "type": "uploader",
+      "optional": true,
+      "owner": "platformio",
+      "version": "~1.11.0"
+    },
     "tool-cmake": {
       "optional": true,
       "owner": "platformio",
diff --git a/platform.py b/platform.py
index a2770606..5cc30824 100644
--- a/platform.py
+++ b/platform.py
@@ -70,7 +70,13 @@ def configure_default_packages(self, variables, targets):
 
         default_protocol = board_config.get("upload.protocol") or ""
         if variables.get("upload_protocol", default_protocol) == "dfu":
-            self.packages["tool-dfuutil"]["optional"] = False
+            dfu_package = "tool-dfuutil"
+            if board.startswith(("portenta", "opta", "nicla")):
+                dfu_package = "tool-dfuutil-arduino"
+                self.packages.pop("tool-dfuutil")
+            else:
+                self.packages.pop("tool-dfuutil-arduino")
+            self.packages[dfu_package]["optional"] = False
 
         if board == "mxchip_az3166":
             self.frameworks["arduino"][