diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 0b48e495a..ae9e02c43 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -1157,8 +1157,8 @@ source_group("CMake Rules" FILES ViewerInstall.cmake)
 # the summary.json file is created for the benefit of the TeamCity builds, where
 #   it is used to provide descriptive information to the build results page
 add_custom_target(generate_viewer_version ALL
-                  COMMAND cmake -E echo ${VIEWER_SHORT_VERSION}.${VIEWER_VERSION_REVISION} > ${CMAKE_CURRENT_BINARY_DIR}/viewer_version.txt
-                  COMMAND cmake -E echo {"Type":"viewer","Version":"${VIEWER_SHORT_VERSION}.${VIEWER_VERSION_REVISION}"} > ${CMAKE_BINARY_DIR}/summary.json
+                  COMMAND ${CMAKE_COMMAND} -E echo ${VIEWER_SHORT_VERSION}.${VIEWER_VERSION_REVISION} > ${CMAKE_CURRENT_BINARY_DIR}/viewer_version.txt
+                  COMMAND ${CMAKE_COMMAND} -E echo {"Type":"viewer","Version":"${VIEWER_SHORT_VERSION}.${VIEWER_VERSION_REVISION}"} > ${CMAKE_BINARY_DIR}/summary.json
                   COMMENT "Generating viewer_version.txt for manifest processing"
                   )