diff --git a/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m b/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m
index 2b51927c13a04bb4b9d1a83fbdb0f0a4dc20c33e..3a1aac4647be7b37081198366adbb217697167af 100644
--- a/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m
+++ b/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m
@@ -243,7 +243,7 @@
     if([unitString isEqualToString:@"mmolPerL"]){
         theUnit = [[HKUnit moleUnitWithMetricPrefix:HKMetricPrefixMilli molarMass:HKUnitMolarMassBloodGlucose] unitDividedByUnit:[HKUnit literUnit]];
     }
-    if([unitString isEqualToString:@"mgPerL"]){
+    if([unitString isEqualToString:@"mgPerdL"]){
         theUnit = [HKUnit unitFromString:@"mg/dL"];
     }
 
diff --git a/constants.js b/constants.js
index 81fafa7f4c53ee3f03b48a346c9cc19691078681..1048ef716c60accd31cb11dfc1cfe027a9d4783d 100644
--- a/constants.js
+++ b/constants.js
@@ -48,7 +48,7 @@ const UNITS = {
 	celsius: 'celsius',
 	mmhg: 'mmhg',
 	mmolPerL: 'mmolPerL',
-	mgPerL: 'mgPerL',
+	mgPerdL: 'mgPerdL',
 };