diff --git a/modules/CustomHealth.lua b/modules/CustomHealth.lua
index 09faf4b..eda2061 100644
--- a/modules/CustomHealth.lua
+++ b/modules/CustomHealth.lua
@@ -144,7 +144,7 @@ function IceCustomHealth.prototype:Update(unit)
 
 	if (self.moduleSettings.scaleHealthColor) then
 		self.color = "ScaledHealthColor"
-	elseif self.moduleSettings.lowThresholdColor and self.healthPercentage <= self.moduleSettings.lowThreshold then
+	elseif self.moduleSettings.lowThresholdColor and self.healthPercentage and self.healthPercentage <= self.moduleSettings.lowThreshold then
 		self.color = "ScaledHealthColor"
 	end
 
diff --git a/modules/TargetOfTargetHealth.lua b/modules/TargetOfTargetHealth.lua
index a4de879..2c1cdde 100644
--- a/modules/TargetOfTargetHealth.lua
+++ b/modules/TargetOfTargetHealth.lua
@@ -136,7 +136,7 @@ function TargetTargetHealth.prototype:Update(unit)
 
 	if (self.moduleSettings.scaleHealthColor) then
 		self.color = "ScaledHealthColor"
-	elseif self.moduleSettings.lowThresholdColor and self.healthPercentage <= self.moduleSettings.lowThreshold then
+	elseif self.moduleSettings.lowThresholdColor and self.healthPercentage and self.healthPercentage <= self.moduleSettings.lowThreshold then
 		self.color = "ScaledHealthColor"
 	end
 
diff --git a/modules/TargetOfTargetMana.lua b/modules/TargetOfTargetMana.lua
index 89bbf2f..9b8a6cd 100644
--- a/modules/TargetOfTargetMana.lua
+++ b/modules/TargetOfTargetMana.lua
@@ -83,7 +83,7 @@ function TargetTargetMana.prototype:Update(unit)
 
 	if (self.moduleSettings.scaleManaColor) then
 		self.color = "ScaledManaColor"
-	elseif self.moduleSettings.lowThresholdColor and self.manaPercentage <= self.moduleSettings.lowThreshold then
+	elseif self.moduleSettings.lowThresholdColor and self.manaPercentage and self.manaPercentage <= self.moduleSettings.lowThreshold then
 		self.color = "ScaledManaColor"
 	end