diff --git a/src/config.h.in b/src/config.h.in
index d0257cc..93972ca 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -354,6 +354,9 @@
 /* Define for linking via dlopen() or LoadLibrary() */
 #undef DYNAMIC_PYTHON3
 
+/* Define if compiled against Python 3 stable ABI / limited API */
+#undef DYNAMIC_PYTHON3_STABLE_ABI
+
 /* Define if dynamic python does not require RTLD_GLOBAL */
 #undef PY_NO_RTLD_GLOBAL