diff --git a/tools/m2ctx.py b/tools/m2ctx.py
index 71562c0a..b48e2e54 100755
--- a/tools/m2ctx.py
+++ b/tools/m2ctx.py
@@ -9,7 +9,8 @@ from pathlib import Path
 CXX_FLAGS = [
     '-nostdinc',
     '-Iinclude',
-    '-Ilibs/c/include'
+    '-Ilibs/c/include',
+    '-Ilibs/cpp/include'
 ]
 
 script_dir = Path(os.path.dirname(os.path.realpath(__file__)))