diff --git a/dynamic.go b/dynamic.go
index 97f9934..875fabf 100644
--- a/dynamic.go
+++ b/dynamic.go
@@ -171,9 +171,9 @@ func prepareCGICommand(config Config, scriptPath string) []string {
 	}
 	base := filepath.Join(config.DocBase, config.HomeDocBase) + string(filepath.Separator)
 	if strings.HasPrefix(scriptPath, base) {
-		segments := filepath.SplitList(scriptPath[len(base):])
+		segments := strings.Split(scriptPath[len(base):], string(filepath.Separator))
 		if len(segments) > 1 {
-			substitutions["{user}"] = segments[0][1:]
+			substitutions["{user}"] = segments[0]
 		}
 	}