diff --git a/cmake_config.h.in b/cmake_config.h.in
index cfd26d77601..eded4c71d97 100644
--- a/cmake_config.h.in
+++ b/cmake_config.h.in
@@ -32,4 +32,6 @@
 
 #define USE_VARD @USE_VARD@
 
+#define HAVE_PAR_FILTERS @HAVE_PAR_FILTERS@
+
 #endif /* _PIO_CONFIG_ */