diff --git a/drug-target/server.R b/drug-target/server.R
index 4b74b71..cbc5bd7 100644
--- a/drug-target/server.R
+++ b/drug-target/server.R
@@ -46,13 +46,12 @@ function(input, output, session) {
   })
   observeEvent(
     {
+      input$force
       input$switch_target
       input$snp_ligand_dist
       input$snp_nca_dist
       input$snp_interface_dist
-      
     },{
-      target_gene = input$switch_target
       merged_df3 = cbind(get(paste0(input$switch_target, '_merged_df3')))
       
       position_max=max(merged_df3[['position']])