diff --git a/client/pages/phenotypes.vue b/client/pages/phenotypes.vue
index f03138e9d28a88b4ea6adb247c9e31bced7097b5..1e5aa9fb346a66948be0340ad0fd1f11c9e7c781 100644
--- a/client/pages/phenotypes.vue
+++ b/client/pages/phenotypes.vue
@@ -33,7 +33,7 @@ Please select the traits you want to analyze jointly with the Omnibus test. A re
         </template>
         </v-data-table>
         <div align="left" justify="start">
-          <v-btn depressed color="primary" v-on:click="runAnalysis()">
+          <v-btn depressed color="primary" v-on:click="runAnalysis()" :disabled="selectedRows.length <=1">
             Launch analysis
           </v-btn>
         </div>