diff --git a/depends/packages/boost.mk b/depends/packages/boost.mk
index 2d027c6839d..02f59abe4d2 100644
--- a/depends/packages/boost.mk
+++ b/depends/packages/boost.mk
@@ -13,6 +13,8 @@ define $(package)_set_vars
   $(package)_config_opts += -DBOOST_INSTALL_LAYOUT=system
   $(package)_config_opts += -DBUILD_TESTING=OFF
   $(package)_config_opts += -DCMAKE_DISABLE_FIND_PACKAGE_ICU=ON
+  # Install to a unique path to prevent accidental inclusion via other dependencies' -I flags.
+  $(package)_config_opts += -DCMAKE_INSTALL_INCLUDEDIR=$(package)/include
 endef
 
 define $(package)_config_cmds