diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/Overview/Dialogs/NewInsulinDialog.java b/app/src/main/java/info/nightscout/androidaps/plugins/Overview/Dialogs/NewInsulinDialog.java
index 6455a3cd0c..b6059f85be 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/Overview/Dialogs/NewInsulinDialog.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/Overview/Dialogs/NewInsulinDialog.java
@@ -162,7 +162,7 @@ public class NewInsulinDialog extends DialogFragment implements OnClickListener,
 
     private String toSignedString(double value) {
         String formatted = DecimalFormatter.toPumpSupportedBolus(value);
-        return value < 0 ? "-" + formatted : formatted;
+        return value > 0 ? "+" + formatted : formatted;
     }
 
     @Override
diff --git a/app/src/main/java/info/nightscout/utils/NSUpload.java b/app/src/main/java/info/nightscout/utils/NSUpload.java
index a0102253b0..9f26d01fea 100644
--- a/app/src/main/java/info/nightscout/utils/NSUpload.java
+++ b/app/src/main/java/info/nightscout/utils/NSUpload.java
@@ -179,7 +179,7 @@ public class NSUpload {
         DbLogger.dbAdd(intent, data.toString());
     }
 
-    private static String getNextAvailableSecond(long time) {
+    private static synchronized String getNextAvailableSecond(long time) {
         long second = time - time % 1000;
         if (second == lastUsedSecond) second += 1000;
         lastUsedSecond = second;