diff --git a/indra/cmake/BuildVersion.cmake b/indra/cmake/BuildVersion.cmake
index 9ee055b59a82bee31f600fa2835cacf5af748919..157fdd07e4c19f5ee97e5d25ac91dcd92a4bc4a2 100644
--- a/indra/cmake/BuildVersion.cmake
+++ b/indra/cmake/BuildVersion.cmake
@@ -14,7 +14,7 @@ if (NOT DEFINED VIEWER_SHORT_VERSION) # will be true in indra/, false in indra/n
            set(VIEWER_VERSION_REVISION $ENV{revision})
            message(STATUS "Revision (from environment): ${VIEWER_VERSION_REVISION}")
 
-        elif (DEFINED ENV{AUTOBUILD_BUILD_ID})
+        elseif (DEFINED ENV{AUTOBUILD_BUILD_ID})
            set(VIEWER_VERSION_REVISION $ENV{AUTOBUILD_BUILD_ID})
            message(STATUS "Revision (from autobuild environment): ${VIEWER_VERSION_REVISION}")