diff --git a/R/use_mnr_ui.R b/R/use_mnr_ui.R
index 76e6376..806d7ea 100644
--- a/R/use_mnr_ui.R
+++ b/R/use_mnr_ui.R
@@ -17,7 +17,7 @@ use_mnr_ui <- function() {
     ),
     htmltools::singleton(
       htmltools::HTML(paste0(
-        "<script src='", resourcePrefix(), "js/frameHeight.js'></script>"
+        "<script src='", resourcePrefix(), "/js/frameHeight.js'></script>"
       ))
     )
   )