diff --git a/.github/workflows/c.yml b/.github/workflows/c.yml
index 9814a82..2b7e4cc 100644
--- a/.github/workflows/c.yml
+++ b/.github/workflows/c.yml
@@ -68,7 +68,7 @@ jobs:
     env:
       CC: clang
       CXX: clang++
-      CXXFLAGS: -Werror -Wall -pedantic
+      CXXFLAGS: -Werror -Wall -pedantic -std=c++17
       BUILD_TYPE: Debug
     steps:
       - uses: actions/checkout@v2
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 69591ed..b98201d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ project(osmpbf VERSION 1.5.0)
 
 include(GNUInstallDirs)
 
-set(CMAKE_CXX_STANDARD 11)
+#set(CMAKE_CXX_STANDARD 11)
 
 find_package(Protobuf REQUIRED)