diff --git a/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.html b/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.html
index cb559dd5ae..da360deae3 100644
--- a/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.html
+++ b/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.html
@@ -21,7 +21,7 @@ <h2 id="title">Provision workspace</h2>
             mat-flat-button
             color="primary"
             type="submit"
-            [disabled]="!projectSlug || !models"
+            [disabled]="!projectSlug || !models || sessionsRequested"
           >
             Start this training
             <mat-icon>keyboard_arrow_right</mat-icon>
diff --git a/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.ts b/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.ts
index 8abe9755ee..588edb1a2c 100644
--- a/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.ts
+++ b/frontend/src/app/sessions/user-sessions-wrapper/create-session/provision-workspace/provision-workspace.component.ts
@@ -30,6 +30,8 @@ export class ProvisionWorkspaceComponent implements OnInit {
     persistentWorkspace: this.fb.control(false),
   });
 
+  public sessionsRequested = false;
+
   constructor(
     private userSessionService: UserSessionService,
     private projectService: ProjectService,
@@ -56,6 +58,7 @@ export class ProvisionWorkspaceComponent implements OnInit {
 
   requestSessions(): void {
     if (this.projectSlug && this.models) {
+      this.sessionsRequested = true;
       this.sessionService
         .provisionWorkspace(
           this.projectSlug,