diff --git a/tns-core-modules/ui/text-base/text-base.android.ts b/tns-core-modules/ui/text-base/text-base.android.ts
index 61131348e..fb47d8c89 100644
--- a/tns-core-modules/ui/text-base/text-base.android.ts
+++ b/tns-core-modules/ui/text-base/text-base.android.ts
@@ -7,6 +7,7 @@ import {
     paddingLeftProperty, paddingTopProperty, paddingRightProperty, paddingBottomProperty, Length,
     whiteSpaceProperty, lineHeightProperty, FormattedString, layout, Span, Color, isBold, resetSymbol
 } from "./text-base-common";
+import { isString } from "../../utils/types";
 
 export * from "./text-base-common";
 
@@ -323,6 +324,10 @@ function getCapitalizedString(str: string): string {
 }
 
 export function getTransformedText(text: string, textTransform: TextTransform): string {
+    if (!text || !isString(text)) {
+        return "";
+    }
+
     switch (textTransform) {
         case "uppercase":
             return text.toUpperCase();
@@ -439,4 +444,4 @@ function setSpanModifiers(ssb: android.text.SpannableStringBuilder, span: Span,
     // if (letterSpacing > 0) {
     //     ssb.setSpan(new android.text.style.ScaleXSpan((letterSpacing + 1) / 10), start, end, android.text.Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
     // }
-}
\ No newline at end of file
+}
diff --git a/tns-core-modules/ui/text-base/text-base.ios.ts b/tns-core-modules/ui/text-base/text-base.ios.ts
index 97f4d13a0..446f9b794 100644
--- a/tns-core-modules/ui/text-base/text-base.ios.ts
+++ b/tns-core-modules/ui/text-base/text-base.ios.ts
@@ -5,6 +5,7 @@ import {
     textTransformProperty, letterSpacingProperty, colorProperty, fontInternalProperty, lineHeightProperty,
     FormattedString, Span, Color, isBold, resetSymbol
 } from "./text-base-common";
+import { isString } from "../../utils/types";
 
 export * from "./text-base-common";
 
@@ -298,6 +299,10 @@ export class TextBase extends TextBaseCommon {
 }
 
 export function getTransformedText(text: string, textTransform: TextTransform): string {
+    if (!text || !isString(text)) {
+        return "";
+    }
+
     switch (textTransform) {
         case "uppercase":
             return NSStringFromNSAttributedString(text).uppercaseString;