diff --git a/rpg-docs/Model/Character/TemporaryHitPoints.js b/rpg-docs/Model/Character/TemporaryHitPoints.js
index 02b6e45d..5f47f0b2 100644
--- a/rpg-docs/Model/Character/TemporaryHitPoints.js
+++ b/rpg-docs/Model/Character/TemporaryHitPoints.js
@@ -3,8 +3,8 @@ TemporaryHitPoints = new Mongo.Collection("temporaryHitPoints");
 Schemas.TemporaryHitPoints = new SimpleSchema({
 	charId:      {type: String, regEx: SimpleSchema.RegEx.Id},
 	name:        {type: String, optional: true},
-	maximum:     {type: Number, defaultValue: 0},
-	used:        {type: Number, defaultValue: 0},
+	maximum:     {type: Number, defaultValue: 0, min: 0, max: 500},
+	used:        {type: Number, defaultValue: 0, min: 0, max: 500},
 	deleteOnZero:{type: Boolean, defaultValue: false},
 	dateAdded:   {
 		type: Date,
diff --git a/rpg-docs/client/views/character/stats/addTHPDialog/addTHPDialog.js b/rpg-docs/client/views/character/stats/addTHPDialog/addTHPDialog.js
index f035bb92..030acd42 100644
--- a/rpg-docs/client/views/character/stats/addTHPDialog/addTHPDialog.js
+++ b/rpg-docs/client/views/character/stats/addTHPDialog/addTHPDialog.js
@@ -1,9 +1,11 @@
 Template.addTHPDialog.events({
 	"tap #addButton": function(event, instance){
+		var max = +instance.find("#quantityInput").value;
+		if (!max || max < 0) max = 0;
 		TemporaryHitPoints.insert({
 			charId: this.charId,
 			name: instance.find("#nameInput").value,
-			maximum: +instance.find("#quantityInput").value,
+			maximum: max,
 			deleteOnZero: !!instance.find("#deleteWhenZeroCheckbox").checked,
 		});
 	}
diff --git a/rpg-docs/client/views/character/stats/healthCard/healthCard.html b/rpg-docs/client/views/character/stats/healthCard/healthCard.html
index fb1a2506..f9626b51 100644
--- a/rpg-docs/client/views/character/stats/healthCard/healthCard.html
+++ b/rpg-docs/client/views/character/stats/healthCard/healthCard.html
@@ -1,14 +1,14 @@
 <template name="healthCard">
-	<paper-shadow class="card container healthCard" 
-				  hero-id="main" {{detailHero "hitPoints" _id}} 
+	<paper-shadow class="card container healthCard"
+				  hero-id="main" {{detailHero "hitPoints" _id}}
 				  layout horizontal wrap>
-		<div class="green white-text subhead left" 
+		<div class="green white-text subhead left"
 			 hero-id="toolbar" {{detailHero "hitPoints" _id}}
 			 layout vertical center center-justified>
 			<div class="hitPointTitle clickable">Hit Points</div>
-			<paper-icon-button class="white54" 
-							   id="addTempHP" 
-							   icon="add" 
+			<paper-icon-button class="white54"
+							   id="addTempHP"
+							   icon="add"
 							   disabled={{#unless canEditCharacter _id}}true{{/unless}}>
 			</paper-icon-button>
 		</div>
@@ -33,14 +33,14 @@
 							  role="slider"
 							  flex
 							  ></paper-diff-slider>
-					{{#unless left}}{{#unless deleteOnZero}}
+					{{#unless left}}
 						<paper-icon-button class="deleteTHP" icon="delete"></paper-icon-button>
-					{{/unless}}{{/unless}}
+					{{/unless}}
 				</div>
 			</div>
 			{{/each}}
 			<div class="caption">
-				{{#if multipliers.immunities.length}} 
+				{{#if multipliers.immunities.length}}
 					<div>
 						Immune:     {{#each multipliers.immunities}}  {{name}} {{/each}}
 					</div>