diff --git a/builder/frameworks/arduino.py b/builder/frameworks/arduino.py
index 88bc910..8fad636 100644
--- a/builder/frameworks/arduino.py
+++ b/builder/frameworks/arduino.py
@@ -41,10 +41,6 @@ FRAMEWORK_DIR = join(platform.get_package_dir(
 FRAMEWORK_VERSION = platform.get_package_version("framework-arduinoststm32")
 assert isdir(FRAMEWORK_DIR)
 
-env.Replace(
-    LIBS=["m", "gcc"]
-)
-
 env.Append(
     CCFLAGS=[
         "--param", "max-inline-insns-single=500",
@@ -72,7 +68,9 @@ env.Append(
     LIBPATH=[
         join(FRAMEWORK_DIR, "variants",
              board.get("build.variant"), "ld")
-    ]
+    ],
+
+    LIBS=["c"]
 )
 
 for item in ("-nostartfiles", "-nostdlib"):
diff --git a/builder/main.py b/builder/main.py
index e41d8d7..0d7d064 100644
--- a/builder/main.py
+++ b/builder/main.py
@@ -137,10 +137,11 @@ if env.subst("$UPLOAD_PROTOCOL") == "gdb":
         UPLOADCMD='$UPLOADER $UPLOADERFLAGS'
     )
 
-if "arduino" in env.subst("$PIOFRAMEWORK"):
+elif env.subst("$UPLOAD_PROTOCOL") in ("serial", "dfu") \
+        and "arduino" in env.subst("$PIOFRAMEWORK"):
     _upload_tool = "serial_upload"
     _upload_flags = ["{upload.altID}", "{upload.usbID}"]
-    if "dfu" in env.subst("$UPLOAD_PROTOCOL"):
+    if env.subst("$UPLOAD_PROTOCOL") == "dfu":
         _upload_tool = "maple_upload"
         _usbids = env.BoardConfig().get("build.hwids")
         _upload_flags = [env.BoardConfig().get("upload.boot_version", 2),
@@ -164,7 +165,7 @@ else:
     target_firm = env.ElfToBin(join("$BUILD_DIR", "firmware"), target_elf)
 
 AlwaysBuild(env.Alias("nobuild", target_firm))
-target_buildprog = env.Alias("buildprog", target_firm)
+target_buildprog = env.Alias("buildprog", target_firm, target_firm)
 
 #
 # Target: Print binary size
diff --git a/platform.json b/platform.json
index 00f25f7..d5b527e 100644
--- a/platform.json
+++ b/platform.json
@@ -13,7 +13,7 @@
     "type": "git",
     "url": "https://github.com/platformio/platform-ststm32.git"
   },
-  "version": "1.3.0",
+  "version": "1.3.1",
   "packageRepositories": [
     "https://dl.bintray.com/platformio/dl-packages/manifest.json",
     "https://sourceforge.net/projects/platformio-storage/files/packages/manifest.json/download",