diff --git a/scons/site_tools/arm.py b/scons/site_tools/arm.py
index aa5b2f548..fae58fae7 100644
--- a/scons/site_tools/arm.py
+++ b/scons/site_tools/arm.py
@@ -170,7 +170,7 @@ def generate(env, **kw):
 	env['CXXFLAGS'] = [
 #		"-fverbose-asm",
 #		"-save-temps",		# save preprocessed files
-		"-std=c++11",
+		"-std=c++14",
 		"-fconstexpr-depth=10000", # enable deep recursion
 		"-fno-exceptions",
 		"-fno-rtti",
diff --git a/scons/site_tools/avr.py b/scons/site_tools/avr.py
index 91dbea7c0..329fd0a91 100644
--- a/scons/site_tools/avr.py
+++ b/scons/site_tools/avr.py
@@ -150,8 +150,7 @@ def generate(env, **kw):
 	
 	# C++ flags
 	env['CXXFLAGS'] = [
-#		"-std=gnu++98",
-		"-std=gnu++0x",
+		"-std=c++14",
 		"-fno-exceptions", 
 		"-fno-rtti",
 		"-fno-threadsafe-statics",
diff --git a/scons/site_tools/hosted.py b/scons/site_tools/hosted.py
index 82d3ee76a..647e52463 100644
--- a/scons/site_tools/hosted.py
+++ b/scons/site_tools/hosted.py
@@ -100,7 +100,7 @@ def generate(env, **kw):
 
 	# C++ flags
 	env['CXXFLAGS'] = [
-		"-std=c++11",
+		"-std=c++14",
 #		"-Weffc++",
 		"-Woverloaded-virtual",
 	]