diff --git a/package-lock.json b/package-lock.json
index f5113132..eddd6a0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vscode-arduino",
-  "version": "0.2.17",
+  "version": "0.2.18",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/src/arduino/arduino.ts b/src/arduino/arduino.ts
index 596a5baf..fb5ddd4a 100644
--- a/src/arduino/arduino.ts
+++ b/src/arduino/arduino.ts
@@ -541,9 +541,13 @@ Please make sure the folder is not occupied by other procedures .`);
                 // Arduino custom libraries
                 includePath.push(path.join(os.homedir(), "Documents", "Arduino", "libraries", "**"));
 
+                const defines = [
+                    "ARDUINO=10800",
+                ];
                 const cppConfig = {
                     configurations: [{
                         name: util.getCppConfigPlatform(),
+                        defines,
                         includePath,
                         intelliSenseMode: "clang-x64",
                         cStandard: "c11",