diff --git a/src/script_opt/ScriptOpt.cc b/src/script_opt/ScriptOpt.cc
index 347b0d3348..fcc2f32fe3 100644
--- a/src/script_opt/ScriptOpt.cc
+++ b/src/script_opt/ScriptOpt.cc
@@ -293,14 +293,14 @@ static void init_options()
 
 	if ( analysis_options.only_funcs.empty() )
 		{
-		auto zo = getenv("ZEEK_FUNC_ONLY");
+		auto zo = getenv("ZEEK_OPT_FUNCS");
 		if ( zo )
 			add_func_analysis_pattern(analysis_options, zo);
 		}
 
 	if ( analysis_options.only_files.empty() )
 		{
-		auto zo = getenv("ZEEK_FILE_ONLY");
+		auto zo = getenv("ZEEK_OPT_FILES");
 		if ( zo )
 			add_file_analysis_pattern(analysis_options, zo);
 		}