diff --git a/configure.ac b/configure.ac
index 690c2a1..caf360a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,6 +15,7 @@
 AC_HEADER_STDC
 
 # Compiler flags
+AX_CXX_COMPILE_STDCXX([17], [noext])
 AX_APPEND_COMPILE_FLAGS([-fpic -Wall], [CFLAGS])
 AX_APPEND_COMPILE_FLAGS([-fpic -Wall], [CXXFLAGS])