diff --git a/math/highs/files/patch-CMakeLists.txt b/math/highs/files/patch-CMakeLists.txt
new file mode 100644
index 000000000000..f36788057713
--- /dev/null
+++ b/math/highs/files/patch-CMakeLists.txt
@@ -0,0 +1,15 @@
+- see https://github.com/ERGO-Code/HiGHS/issues/526
+
+--- CMakeLists.txt.orig	2021-06-23 15:29:24 UTC
++++ CMakeLists.txt
+@@ -304,7 +304,9 @@ endif()
+ # Targets
+ enable_testing()
+ add_subdirectory(app)
+-add_subdirectory(check)
++if (BUILD_TESTING)
++  add_subdirectory(check)
++endif()
+ add_subdirectory(src)
+ 
+