diff --git a/static/serve.go b/static/serve.go
index e2e0d3f..8ff68ef 100644
--- a/static/serve.go
+++ b/static/serve.go
@@ -3,6 +3,7 @@ package static
 import (
 	"fmt"
 	"net/http"
+	"strings"
 
 	"git.company.lan/gopkg/gin"
 )
@@ -31,7 +32,7 @@ func ServeCached(urlPrefix string, fs ServeFileSystem, cacheAge uint) gin.Handle
 		fileserver = http.StripPrefix(urlPrefix, fileserver)
 	}
 	return func(c *gin.Context) {
-		if fs.Exists(urlPrefix, c.Request.URL.Path) && !fs.Override(c) {
+		if strings.HasPrefix(c.Request.URL.Path, urlPrefix) && fs.Exists(urlPrefix, c.Request.URL.Path) && !fs.Override(c) {
 			if cacheAge != 0 {
 				c.Writer.Header().Add("Cache-Control", fmt.Sprintf("max-age=%d", cacheAge))
 			}