diff --git a/buildconfig/CMake/Span.cmake b/buildconfig/CMake/Span.cmake
index e5020d24c8a67de0ef3853c2c29156f146f05b36..426d1880d95ec859b5d6bf0838d574cf9b236721 100644
--- a/buildconfig/CMake/Span.cmake
+++ b/buildconfig/CMake/Span.cmake
@@ -9,8 +9,8 @@ FetchContent_Declare(
   span
   GIT_REPOSITORY https://github.com/tcbrindle/span.git
   GIT_TAG        08cb4bf0e06c0e36f7e2b64e488ede711a8bb5ad
-  PATCH_COMMAND     ${GIT_EXECUTABLE} reset --hard ${_tag}
-    COMMAND ${GIT_EXECUTABLE} apply ${_apply_flags} ${CMAKE_SOURCE_DIR}/buildconfig/CMake/span_disable_testing.patch
+  PATCH_COMMAND     "${GIT_EXECUTABLE}" reset --hard ${_tag}
+    COMMAND "${GIT_EXECUTABLE}" apply ${_apply_flags} "${CMAKE_SOURCE_DIR}/buildconfig/CMake/span_disable_testing.patch"
 )
 
 FetchContent_GetProperties(span)