diff --git a/ports/septag-sx/CONTROL b/ports/septag-sx/CONTROL
index 4c329f1a6..a9748b910 100644
--- a/ports/septag-sx/CONTROL
+++ b/ports/septag-sx/CONTROL
@@ -1,3 +1,3 @@
 Source: septag-sx
-Version: 2019-05-07
+Version: 2019-05-07-1
 Description: Portable base library for C programmers, designed for performance and simplicity.
diff --git a/ports/septag-sx/portfile.cmake b/ports/septag-sx/portfile.cmake
index 0c2e85fa4..d77545134 100644
--- a/ports/septag-sx/portfile.cmake
+++ b/ports/septag-sx/portfile.cmake
@@ -1,5 +1,9 @@
 include(vcpkg_common_functions)
 
+if(TARGET_TRIPLET MATCHES "(uwp|arm)")
+    message(FATAL_ERROR "septag-sx doesn't support ${TARGET_TRIPLET} currently.")
+endif()
+
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO septag/sx