diff --git a/contrib/src/main.mak b/contrib/src/main.mak
index d99123521ebccaccfc327e0d2109aa3549734973..1d8730d494e2fd869b00daaef030e9cb39592ca7 100644
--- a/contrib/src/main.mak
+++ b/contrib/src/main.mak
@@ -154,7 +154,10 @@ endif
 CCAS=$(CC) -c
 
 ifdef HAVE_IOS
-MIN_IOS_VERSION=8.0
+
+ifndef MIN_IOS_VERSION
+MIN_IOS_VERSION=9.3
+endif
 
 CC=xcrun clang
 CXX=xcrun clang++