diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0c3385137..25e499201 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ set (RELEASE_SERVICE_VERSION_MICRO "70")
 set (RELEASE_SERVICE_VERSION "${RELEASE_SERVICE_VERSION_MAJOR}.${RELEASE_SERVICE_VERSION_MINOR}.${RELEASE_SERVICE_VERSION_MICRO}")
 
 project(kdeconnect VERSION ${RELEASE_SERVICE_VERSION})
-
+set(CMAKE_C_STANDARD 99)
 set(CMAKE_CXX_STANDARD 17)
 
 if (SAILFISHOS)