diff --git a/Make.inc b/Make.inc
index d190e130deed7..afc08e6b9e394 100644
--- a/Make.inc
+++ b/Make.inc
@@ -35,7 +35,6 @@ USE_SYSTEM_SUITESPARSE=0
 USE_SYSTEM_RMATH=0
 USE_SYSTEM_LIBUV=0
 USE_SYSTEM_UTF8PROC=0
-USE_SYSTEM_UTF8PROC=0
 USE_SYSTEM_LIBGIT2=0
 USE_SYSTEM_PATCHELF=0