diff --git a/cmake/Reprojucer.cmake b/cmake/Reprojucer.cmake
index ea8af8e75..3edc06828 100644
--- a/cmake/Reprojucer.cmake
+++ b/cmake/Reprojucer.cmake
@@ -6754,10 +6754,10 @@ function(_FRUT_version_to_dec version out_dec_value)
   list(GET segments 0 major)
   list(GET segments 1 minor)
   list(GET segments 2 patch)
-  math(EXPR dec_value "(${major} << 16) + (${minor} << 8) + ${patch}")
+  math(EXPR dec_value "(${major} << 16) | (${minor} << 8) | ${patch}")
   if(segments_size GREATER 3)
     list(GET segments 3 revision)
-    math(EXPR dec_value "${dec_value} << 8 + ${revision}")
+    math(EXPR dec_value "${dec_value} << 8 | ${revision}")
   endif()
 
   set(${out_dec_value} "${dec_value}" PARENT_SCOPE)