diff --git a/srcpkgs/chrony/patches/0001-add-missing-sys-param_h.patch b/srcpkgs/chrony/patches/0001-add-missing-sys-param_h.patch
new file mode 100644
index 00000000000..3f1ab6be453
--- /dev/null
+++ b/srcpkgs/chrony/patches/0001-add-missing-sys-param_h.patch
@@ -0,0 +1,10 @@
+--- test/unit/test.c
++++ test/unit/test.c
+@@ -22,6 +22,7 @@
+ #include <sysincl.h>
+ #include <logging.h>
+ #include <localp.h>
++#include <sys/param.h> /* for MIN */
+ 
+ #include "test.h"
+