diff --git a/angular/src/components/settings/vault-timeout-input.component.ts b/angular/src/components/settings/vault-timeout-input.component.ts
index f2fe6d5287..eb6057f275 100644
--- a/angular/src/components/settings/vault-timeout-input.component.ts
+++ b/angular/src/components/settings/vault-timeout-input.component.ts
@@ -18,7 +18,14 @@ export class VaultTimeoutInputComponent implements ControlValueAccessor, Validat
     return this.form.get("vaultTimeout").value === VaultTimeoutInputComponent.CUSTOM_VALUE;
   }
 
+  get exceedsMinimumTimout(): boolean {
+    return (
+      !this.showCustom || this.customTimeInMinutes() > VaultTimeoutInputComponent.MIN_CUSTOM_MINUTES
+    );
+  }
+
   static CUSTOM_VALUE = -100;
+  static MIN_CUSTOM_MINUTES = 0;
 
   form = this.formBuilder.group({
     vaultTimeout: [null],
@@ -132,10 +139,18 @@ export class VaultTimeoutInputComponent implements ControlValueAccessor, Validat
       return { policyError: true };
     }
 
+    if (!this.exceedsMinimumTimout) {
+      return { minTimeoutError: true };
+    }
+
     return null;
   }
 
   registerOnValidatorChange(fn: () => void): void {
     this.validatorChange = fn;
   }
+
+  private customTimeInMinutes() {
+    return this.form.get("custom.hours")?.value * 60 + this.form.get("custom.minutes")?.value;
+  }
 }