diff --git a/configure.ac b/configure.ac
index d2359f703..c19ca4010 100644
--- a/configure.ac
+++ b/configure.ac
@@ -944,6 +944,7 @@ RB_CHK_SYSHEADER(type_traits, [TYPE_TRAITS])
 RB_CHK_SYSHEADER(typeindex, [TYPEINDEX])
 RB_CHK_SYSHEADER(variant, [VARIANT])
 RB_CHK_SYSHEADER(utility, [UTILITY])
+RB_CHK_SYSHEADER(execution, [EXECUTION])
 RB_CHK_SYSHEADER(functional, [FUNCTIONAL])
 RB_CHK_SYSHEADER(algorithm, [ALGORITHM])
 RB_CHK_SYSHEADER(numeric, [NUMERIC])
diff --git a/include/ircd/stdinc.h b/include/ircd/stdinc.h
index b3365f387..d64d14c15 100644
--- a/include/ircd/stdinc.h
+++ b/include/ircd/stdinc.h
@@ -114,6 +114,7 @@ extern "C"
 
 // Other standard suites
 #include <RB_INC_UTILITY
+#include <RB_INC_EXECUTION
 #include <RB_INC_FUNCTIONAL
 #include <RB_INC_ALGORITHM
 #include <RB_INC_FILESYSTEM