1 files changed, 18 insertions, 0 deletions
diff --git a/arduino-mk-vars.md b/arduino-mk-vars.md
index 28ed27f..c49f4a2 100644
--- a/arduino-mk-vars.md
+++ b/arduino-mk-vars.md
@@ -798,6 +798,24 @@ Defaults to `-std=gnu99`
 
 ----
 
+### CPPFLAGS_STD
+
+**Description:**
+
+Flags to pass to the C compiler.
+
+Defaults to `-std=c++0x`
+
+**Example:**
+
+```Makefile
+CPPFLAGS_STD = -std=gnu++14
+```
+
+**Requirement:** *Optional*
+
+----
+
 ### OVERRIDE_EXECUTABLES
 
 **Description:**