diff --git a/scripts/templates/portfile.in.cmake b/scripts/templates/portfile.in.cmake
index ef72431ff..2ea430453 100644
--- a/scripts/templates/portfile.in.cmake
+++ b/scripts/templates/portfile.in.cmake
@@ -1,9 +1,13 @@
 # Common Ambient Variables:
-#   VCPKG_ROOT_DIR = <C:\path\to\current\vcpkg>
-#   TARGET_TRIPLET is the current triplet (x86-windows, etc)
-#   PORT is the current port name (zlib, etc)
-#   CURRENT_BUILDTREES_DIR = ${VCPKG_ROOT_DIR}\buildtrees\${PORT}
-#   CURRENT_PACKAGES_DIR  = ${VCPKG_ROOT_DIR}\packages\${PORT}_${TARGET_TRIPLET}
+#   CURRENT_BUILDTREES_DIR    = ${VCPKG_ROOT_DIR}\buildtrees\${PORT}
+#   CURRENT_PACKAGES_DIR      = ${VCPKG_ROOT_DIR}\packages\${PORT}_${TARGET_TRIPLET}
+#   CURRENT_PORT DIR          = ${VCPKG_ROOT_DIR}\ports\${PORT}
+#   PORT                      = current port name (zlib, etc)
+#   TARGET_TRIPLET            = current triplet (x86-windows, x64-windows-static, etc)
+#   VCPKG_CRT_LINKAGE         = C runtime linkage type (static, dynamic)
+#   VCPKG_LIBRARY_LINKAGE     = target library linkage type (static, dynamic)
+#   VCPKG_ROOT_DIR            = <C:\path\to\current\vcpkg>
+#   VCPKG_TARGET_ARCHITECTURE = target architecture (x64, x86, arm)
 #
 
 include(vcpkg_common_functions)