diff --git a/platformio/commands/check/tools/base.py b/platformio/commands/check/tools/base.py
index d199f131..ae4bf7b5 100644
--- a/platformio/commands/check/tools/base.py
+++ b/platformio/commands/check/tools/base.py
@@ -12,9 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import click
 import os
 
+import click
+
 from platformio import fs, proc
 from platformio.commands.check.defect import DefectItem
 from platformio.project.helpers import get_project_dir, load_project_ide_data
@@ -26,6 +27,7 @@ class CheckToolBase(object):  # pylint: disable=too-many-instance-attributes
         self.envname = envname
         self.options = options
         self.cpp_defines = []
+        self.cpp_flags = []
         self.cpp_includes = []
 
         self._defects = []
@@ -50,6 +52,7 @@ class CheckToolBase(object):  # pylint: disable=too-many-instance-attributes
         data = load_project_ide_data(project_dir, envname)
         if not data:
             return
+        self.cpp_flags = data.get("cxx_flags", "").split(" ")
         self.cpp_includes = data.get("includes", [])
         self.cpp_defines = data.get("defines", [])
         self.cpp_defines.extend(self._get_toolchain_defines(data.get("cc_path")))
diff --git a/platformio/commands/check/tools/cppcheck.py b/platformio/commands/check/tools/cppcheck.py
index b9a8578b..17d1f041 100644
--- a/platformio/commands/check/tools/cppcheck.py
+++ b/platformio/commands/check/tools/cppcheck.py
@@ -90,9 +90,6 @@ class CppcheckCheckTool(CheckToolBase):
             % "<&PIO&>".join(["{0}={{{0}}}".format(f) for f in self.defect_fields])
         )
 
-        if self.get_source_language() == "c++":
-            cmd.append("--language=c++")
-
         flags = self.get_flags("cppcheck")
         if not self.is_flag_set("--platform", flags):
             cmd.append("--platform=unspecified")
@@ -106,6 +103,16 @@ class CppcheckCheckTool(CheckToolBase):
             ]
             cmd.append("--enable=%s" % ",".join(enabled_checks))
 
+        if not self.is_flag_set("--language", flags):
+            if self.get_source_language() == "c++":
+                cmd.append("--language=c++")
+
+                if not self.is_flag_set("--std", flags):
+                    for f in self.cpp_flags:
+                        if "-std" in f:
+                            # Standards with GNU extensions are not allowed
+                            cmd.append("-" + f.replace("gnu", "c"))
+
         cmd.extend(["-D%s" % d for d in self.cpp_defines])
         cmd.extend(flags)