diff --git a/app/src/main/java/emu/skyline/KeyReader.kt b/app/src/main/java/emu/skyline/KeyReader.kt
index 8c93375b..c816f1ea 100644
--- a/app/src/main/java/emu/skyline/KeyReader.kt
+++ b/app/src/main/java/emu/skyline/KeyReader.kt
@@ -47,40 +47,41 @@ object KeyReader {
 
         val tmpOutputFile = File("${context.filesDir.canonicalFile}/${keyType.fileName}.tmp")
 
-        val inputStream = context.contentResolver.openInputStream(uri)
-        tmpOutputFile.bufferedWriter().use { writer ->
-            val valid = inputStream!!.bufferedReader().useLines {
-                for (line in it) {
-                    if (line.startsWith(";") || line.isBlank()) continue
+        context.contentResolver.openInputStream(uri).use { inputStream ->
+            tmpOutputFile.bufferedWriter().use { writer ->
+                val valid = inputStream!!.bufferedReader().useLines {
+                    for (line in it) {
+                        if (line.startsWith(";") || line.isBlank()) continue
 
-                    val pair = line.split("=")
-                    if (pair.size != 2)
-                        return@useLines false
+                        val pair = line.split("=")
+                        if (pair.size != 2)
+                            return@useLines false
 
-                    val key = pair[0].trim()
-                    val value = pair[1].trim()
-                    when (keyType) {
-                        KeyType.Title -> {
-                            if (key.length != 32 && !isHexString(key))
-                                return@useLines false
-                            if (value.length != 32 && !isHexString(value))
-                                return@useLines false
-                        }
-                        KeyType.Prod -> {
-                            if (!key.contains("_"))
-                                return@useLines false
-                            if (!isHexString(value))
-                                return@useLines false
+                        val key = pair[0].trim()
+                        val value = pair[1].trim()
+                        when (keyType) {
+                            KeyType.Title -> {
+                                if (key.length != 32 && !isHexString(key))
+                                    return@useLines false
+                                if (value.length != 32 && !isHexString(value))
+                                    return@useLines false
+                            }
+                            KeyType.Prod -> {
+                                if (!key.contains("_"))
+                                    return@useLines false
+                                if (!isHexString(value))
+                                    return@useLines false
+                            }
                         }
+
+                        writer.append("$key=$value\n")
                     }
-
-                    writer.append("$key=$value\n")
+                    true
                 }
-                true
-            }
 
-            if (valid) tmpOutputFile.renameTo(File("${tmpOutputFile.parent}/${keyType.fileName}"))
-            return valid
+                if (valid) tmpOutputFile.renameTo(File("${tmpOutputFile.parent}/${keyType.fileName}"))
+                return valid
+            }
         }
     }