diff --git a/configure.ac b/configure.ac
index a811138ca..3140d14c6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1162,6 +1162,7 @@ RB_CHK_SYSHEADER(list, [LIST])
 RB_CHK_SYSHEADER(stack, [STACK])
 RB_CHK_SYSHEADER(queue, [QUEUE])
 RB_CHK_SYSHEADER(deque, [DEQUE])
+RB_CHK_SYSHEADER(tuple, [TUPLE])
 RB_CHK_SYSHEADER(array, [ARRAY])
 RB_CHK_SYSHEADER(vector, [VECTOR])
 RB_CHK_SYSHEADER(forward_list, [FORWARD_LIST])
@@ -1192,6 +1193,7 @@ RB_CHK_SYSHEADER(new, [NEW])
 RB_CHK_SYSHEADER(regex, [REGEX])
 RB_CHK_SYSHEADER(memory_resource, [MEMORY_RESOURCE])
 RB_CHK_SYSHEADER(filesystem, [FILESYSTEM])
+RB_CHK_SYSHEADER(concepts, [CONCEPTS])
 RB_CHK_SYSHEADER(cxxabi.h, [CXXABI_H])
 
 dnl unix platform
diff --git a/include/ircd/stdinc.h b/include/ircd/stdinc.h
index 14f5e9a15..f86579bcb 100644
--- a/include/ircd/stdinc.h
+++ b/include/ircd/stdinc.h
@@ -55,6 +55,7 @@ extern "C"
 #include <RB_INC_LIMITS
 #include <RB_INC_TYPEINDEX
 #include <RB_INC_TYPE_TRAITS
+#include <RB_INC_CONCEPTS
 
 // Errors
 #include <RB_INC_CERRNO
@@ -68,6 +69,7 @@ extern "C"
 // Containers
 #include <RB_INC_VARIANT
 #include <RB_INC_OPTIONAL
+#include <RB_INC_TUPLE
 #include <RB_INC_ARRAY
 #include <RB_INC_BITSET
 #include <RB_INC_VECTOR