diff --git a/src/global/money/money.js b/src/global/money/money.js
index 55412d39..c052daf4 100644
--- a/src/global/money/money.js
+++ b/src/global/money/money.js
@@ -45,6 +45,7 @@ function MoneyMaskDirective($locale, $parse, PreFormatters) {
 
 				var actualNumber = value.replace(/[^\d]+/g,'');
 				actualNumber = actualNumber.replace(/^[0]+([1-9])/,'$1');
+				actualNumber = actualNumber || '0';
 				var formatedValue = moneyMask.apply(actualNumber);
 
 				if (angular.isDefined(attrs.uiNegativeNumber)) {
diff --git a/src/global/money/money.spec.js b/src/global/money/money.spec.js
index afebe950..4a5a44a1 100644
--- a/src/global/money/money.spec.js
+++ b/src/global/money/money.spec.js
@@ -97,5 +97,16 @@ describe('ui.utils.masks.money', function() {
 				expect(input.getAttribute('value')).toEqual(currency + formatedNumberAsString);
 			}
 		});
+
+		it('should convert invalid values to zero', function() {
+			var currency = 'R$ ';
+
+			var input = element(by.model('defaultMoney'));
+
+			input.clear(); //Clear to send invalid content
+			input.sendKeys('a'); //Typing invalid content, bug #146
+
+			expect(input.getAttribute('value')).toEqual(currency + '0,00');
+		});
 	});
 });
diff --git a/src/global/money/money.test.js b/src/global/money/money.test.js
index 7f5ab611..70b9080b 100644
--- a/src/global/money/money.test.js
+++ b/src/global/money/money.test.js
@@ -170,4 +170,14 @@ describe('ui-money-mask', function() {
 			});
 		});
 	}));
+
+	it('should convert invalid values to zero', function() {
+		var input = TestUtil.compile('<input ng-model="model" ui-money-mask>', {});
+		var model = input.controller('ngModel');
+
+		input.val('').triggerHandler('input');
+		input.val('a').triggerHandler('input');
+		expect(model.$viewValue).toBe('$ 0.00');
+		expect(model.$modelValue).toBe(0);
+	});
 });