diff --git a/acra-http/src/main/java/org/acra/http/MultipartHttpRequest.kt b/acra-http/src/main/java/org/acra/http/MultipartHttpRequest.kt
index 00f5e56bb4..a8bfa12cd1 100644
--- a/acra-http/src/main/java/org/acra/http/MultipartHttpRequest.kt
+++ b/acra-http/src/main/java/org/acra/http/MultipartHttpRequest.kt
@@ -47,6 +47,7 @@ class MultipartHttpRequest(config: CoreConfiguration, private val context: Conte
                 .format(CONTENT_TYPE, contentType)
                 .append(NEW_LINE)
                 .append(content.first)
+                .append(NEW_LINE)
         for (uri in content.second) {
             try {
                 val name = UriUtils.getFileNameFromUri(context, uri)
@@ -56,6 +57,7 @@ class MultipartHttpRequest(config: CoreConfiguration, private val context: Conte
                         .append(NEW_LINE)
                         .flush()
                 UriUtils.copyFromUri(context, outputStream, uri)
+                writer.append(NEW_LINE)
             } catch (e: FileNotFoundException) {
                 warn(e) { "Not sending attachment" }
             }
@@ -67,8 +69,8 @@ class MultipartHttpRequest(config: CoreConfiguration, private val context: Conte
         private const val BOUNDARY = "%&ACRA_REPORT_DIVIDER&%"
         private const val BOUNDARY_FIX = "--"
         private const val NEW_LINE = "\r\n"
-        private const val SECTION_START = NEW_LINE + BOUNDARY_FIX + BOUNDARY + NEW_LINE
-        private const val MESSAGE_END = NEW_LINE + BOUNDARY_FIX + BOUNDARY + BOUNDARY_FIX + NEW_LINE
+        private const val SECTION_START = BOUNDARY_FIX + BOUNDARY + NEW_LINE
+        private const val MESSAGE_END = BOUNDARY_FIX + BOUNDARY + BOUNDARY_FIX + NEW_LINE
         private const val CONTENT_DISPOSITION = "Content-Disposition: form-data; name=\"%s\"; filename=\"%s\"$NEW_LINE"
         private const val CONTENT_TYPE = "Content-Type: %s$NEW_LINE"
     }
diff --git a/acra-http/src/main/java/org/acra/util/UriUtils.kt b/acra-http/src/main/java/org/acra/util/UriUtils.kt
index 4e488f77d6..7db82a093f 100644
--- a/acra-http/src/main/java/org/acra/util/UriUtils.kt
+++ b/acra-http/src/main/java/org/acra/util/UriUtils.kt
@@ -32,15 +32,25 @@ import java.io.OutputStream
 object UriUtils {
     @Throws(IOException::class)
     fun copyFromUri(context: Context, outputStream: OutputStream, uri: Uri) {
-        context.contentResolver.openInputStream(uri)?.copyTo(outputStream, bufferSize = ACRAConstants.DEFAULT_BUFFER_SIZE_IN_BYTES) ?: throw FileNotFoundException(
-                "Could not open $uri")
+        context.contentResolver.openInputStream(uri)?.use {
+            it.copyTo(outputStream, bufferSize = ACRAConstants.DEFAULT_BUFFER_SIZE_IN_BYTES)
+        } ?: throw FileNotFoundException("Could not open $uri")
     }
 
     @Throws(FileNotFoundException::class)
     fun getFileNameFromUri(context: Context, uri: Uri): String {
-        context.contentResolver.query(uri, arrayOf(OpenableColumns.DISPLAY_NAME), null, null, null)?.use { cursor ->
-            if (cursor.moveToFirst()) {
-                return cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
+        val cursor = context.contentResolver.query(uri, arrayOf(OpenableColumns.DISPLAY_NAME), null, null, null)
+        if (cursor != null) {
+            @Suppress("ConvertTryFinallyToUseCall") // cursor is not Closeable until API 16
+            try {
+                if (cursor.moveToFirst()) {
+                    val columnIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+                    if (columnIndex != -1) {
+                        return cursor.getString(columnIndex)
+                    }
+                }
+            } finally {
+                cursor.close()
             }
         }
         throw FileNotFoundException("Could not resolve filename of $uri")