diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4be920c2203678aac71a1e3788865fc9a1510653..0d4a96329b93e2c921261ad655a24c69f360cf2e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,6 +41,9 @@ set(PROJECT_DESCRIPTION
   )
 SET(PROJECT_USE_CMAKE_EXPORT TRUE)
 
+SET(CMAKE_C_STANDARD 99)
+SET(CMAKE_CXX_STANDARD 98)
+
 # Do not support CMake older than 2.8.12
 CMAKE_POLICY(SET CMP0022 NEW)
 SET(PROJECT_USE_KEYWORD_LINK_LIBRARIES TRUE)