diff --git a/examples/wiring-blink/platformio.ini b/examples/wiring-blink/platformio.ini
index b079b0f6..87535386 100644
--- a/examples/wiring-blink/platformio.ini
+++ b/examples/wiring-blink/platformio.ini
@@ -10,7 +10,6 @@ board = uno
 platform = espressif
 framework = arduino
 board = nodemcu
-build_flags = -D LED_BUILTIN=BUILTIN_LED
 
 [env:teensy31]
 platform = teensy
diff --git a/platformio/builder/tools/piomisc.py b/platformio/builder/tools/piomisc.py
index e366b821..018ad7f7 100644
--- a/platformio/builder/tools/piomisc.py
+++ b/platformio/builder/tools/piomisc.py
@@ -228,6 +228,7 @@ def DumpIDEData(env):
     # https://github.com/platformio/platformio-atom-ide/issues/34
     _new_defines = []
     for item in env_.get("CPPDEFINES", []):
+        item = item.replace('\\"', '"')
         if " " in item:
             _new_defines.append(item.replace(" ", "\\\\ "))
         else:
diff --git a/platformio/ide/tpls/atom/.gcc-flags.json.tpl b/platformio/ide/tpls/atom/.gcc-flags.json.tpl
index 1a6f5241..5af2ea3a 100644
--- a/platformio/ide/tpls/atom/.gcc-flags.json.tpl
+++ b/platformio/ide/tpls/atom/.gcc-flags.json.tpl
@@ -1,7 +1,7 @@
 {
   "execPath": "{{ cxx_path.replace("\\", "/") }}",
-  "gccDefaultCFlags": "-fsyntax-only {{! cc_flags.replace(' -MMD ', ' ').replace('"', '\"') }}",
-  "gccDefaultCppFlags": "-fsyntax-only {{! cxx_flags.replace(' -MMD ', ' ').replace('"', '\"') }}",
+  "gccDefaultCFlags": "-fsyntax-only {{! cc_flags.replace(' -MMD ', ' ').replace('"', '\\"') }}",
+  "gccDefaultCppFlags": "-fsyntax-only {{! cxx_flags.replace(' -MMD ', ' ').replace('"', '\\"') }}",
   "gccErrorLimit": 15,
   "gccIncludePaths": "{{ ','.join(includes).replace("\\", "/") }}",
   "gccSuppressWarnings": false