diff --git a/android/ScratchJr/app/src/main/java/org/scratchjr/android/IOManager.java b/android/ScratchJr/app/src/main/java/org/scratchjr/android/IOManager.java
index 635d0ca..e5a5396 100644
--- a/android/ScratchJr/app/src/main/java/org/scratchjr/android/IOManager.java
+++ b/android/ScratchJr/app/src/main/java/org/scratchjr/android/IOManager.java
@@ -324,7 +324,7 @@ public class IOManager {
             if (entry == null) {
                 continue;
             }
-            if (!(entry.endsWith(".png") || entry.endsWith(".wav") || entry.endsWith(".svg"))) {
+            if (!(entry.endsWith(".png") || entry.endsWith(".wav") || entry.endsWith(".mp3") || entry.endsWith(".svg"))) {
                 continue;
             }
             // copy file to target file
diff --git a/ios/ScratchJr/src/IO.m b/ios/ScratchJr/src/IO.m
index 6fdacb7..e7bedfe 100644
--- a/ios/ScratchJr/src/IO.m
+++ b/ios/ScratchJr/src/IO.m
@@ -332,7 +332,7 @@ NSMutableDictionary *soundtimers;
     NSString *path;
     while ((path = [enumerator nextObject]) != nil) {
         // we are only interested in images and sounds
-        if ([path hasSuffix:@".png"] || [path hasSuffix:@".wav"] || [path hasSuffix:@".svg"]) {
+        if ([path hasSuffix:@".png"] || [path hasSuffix:@".wav"] || [path hasSuffix:@".mp3"] || [path hasSuffix:@".svg"]) {
             NSString *fileName = [path lastPathComponent];
             // extract file
             NSString *toPath = [[IO getpath] stringByAppendingPathComponent:fileName];
diff --git a/src/utils/ScratchAudio.js b/src/utils/ScratchAudio.js
index 1330654..d8398be 100755
--- a/src/utils/ScratchAudio.js
+++ b/src/utils/ScratchAudio.js
@@ -86,7 +86,7 @@ export default class ScratchAudio {
         var dir = '';
         if (!isAndroid) {
             if (md5.indexOf('/') > -1) dir = 'HTML5/';
-            else if (md5.indexOf('wav') > -1) dir = 'Documents';
+            else if (md5.indexOf('wav') > -1 || md5.indexOf('mp3') > -1) dir = 'Documents';
         }
         ScratchAudio.loadFromLocal(dir, md5, fcn);
     }