diff --git a/contrib/Findsodium.cmake b/contrib/Findsodium.cmake
index 2bfe8c18..735584d5 100644
--- a/contrib/Findsodium.cmake
+++ b/contrib/Findsodium.cmake
@@ -104,18 +104,14 @@ elseif (WIN32)
             message(FATAL_ERROR "the ${_TARGET_ARCH} architecture is not supported by Findsodium.cmake.")
         endif()
         string(APPEND _PLATFORM_PATH "/$$CONFIG$$")
-        # this will need to be maintained manually -.-'
-        if (MSVC_VERSION EQUAL 1600)
-            string(APPEND _PLATFORM_PATH "/v100")
-        elseif (MSVC_VERSION EQUAL 1700)
-            string(APPEND _PLATFORM_PATH "/v110")
-        elseif (MSVC_VERSION EQUAL 1800)
-            string(APPEND _PLATFORM_PATH "/v120")
-        elseif (MSVC_VERSION EQUAL 1900)
-            string(APPEND _PLATFORM_PATH "/v140")
+
+        if (MSVC_VERSION LESS 1900)
+            math(EXPR _VS_VERSION "${MSVC_VERSION} / 10 - 60")
         else()
-            message(FATAL_ERROR "msvc version ${MSVC_VERSION} is not supported by Findsodium.cmake.")
+            math(EXPR _VS_VERSION "${MSVC_VERSION} / 10 - 50")
         endif()
+        string(APPEND _PLATFORM_PATH "/v${_VS_VERSION}")
+
         if (sodium_USE_STATIC_LIBS)
             string(APPEND _PLATFORM_PATH "/static")
         else()