diff --git a/src/FinishedTorrents.cpp b/src/FinishedTorrents.cpp
index a74a8eecd..81a955468 100644
--- a/src/FinishedTorrents.cpp
+++ b/src/FinishedTorrents.cpp
@@ -173,7 +173,7 @@ void FinishedTorrents::updateFinishedList(){
       continue;
     }
     if(h.is_paused()) continue;
-    Q_ASSERT(torrentStatus.progress <= 1.);
+    Q_ASSERT(torrentStatus.progress <= 1. && torrentStatus.progress >= 0.);
     if(torrentStatus.state == torrent_status::downloading || (torrentStatus.state != torrent_status::checking_files && torrentStatus.state != torrent_status::queued_for_checking && torrentStatus.progress < 1.)) {
       // What are you doing here? go back to download tab!
       qDebug("Info: a torrent was moved from finished to download tab");
diff --git a/src/GUI.cpp b/src/GUI.cpp
index eac69c0bc..72a01fe1f 100644
--- a/src/GUI.cpp
+++ b/src/GUI.cpp
@@ -578,7 +578,7 @@ void GUI::updateDlList(bool force){
           if(BTSession->getTorrentsToPauseAfterChecking().indexOf(fileHash) == -1){
             DLListModel->setData(DLListModel->index(row, NAME), QVariant(QIcon(":/Icons/time.png")), Qt::DecorationRole);
             setRowColor(row, "grey");
-            Q_ASSERT(torrentStatus.progress <= 1.);
+            Q_ASSERT(torrentStatus.progress <= 1. && torrentStatus.progress >= 0.);
             DLListModel->setData(DLListModel->index(row, PROGRESS), QVariant((double)torrentStatus.progress));
           }
           break;
@@ -593,7 +593,7 @@ void GUI::updateDlList(bool force){
             DLListModel->setData(DLListModel->index(row, NAME), QVariant(QIcon(":/Icons/skin/connecting.png")), Qt::DecorationRole);
             setRowColor(row, "grey");
           }
-          Q_ASSERT(torrentStatus.progress <= 1.);
+          Q_ASSERT(torrentStatus.progress <= 1. && torrentStatus.progress >= 0.);
           DLListModel->setData(DLListModel->index(row, PROGRESS), QVariant((double)torrentStatus.progress));
           DLListModel->setData(DLListModel->index(row, DLSPEED), QVariant((double)torrentStatus.download_payload_rate));
           DLListModel->setData(DLListModel->index(row, UPSPEED), QVariant((double)torrentStatus.upload_payload_rate));
@@ -610,7 +610,7 @@ void GUI::updateDlList(bool force){
             DLListModel->setData(DLListModel->index(row, ETA), QVariant((qlonglong)-1));
             setRowColor(row, "black");
           }
-          Q_ASSERT(torrentStatus.progress <= 1.);
+          Q_ASSERT(torrentStatus.progress <= 1. && torrentStatus.progress >= 0.);
           DLListModel->setData(DLListModel->index(row, PROGRESS), QVariant((double)torrentStatus.progress));
           DLListModel->setData(DLListModel->index(row, DLSPEED), QVariant((double)torrentStatus.download_payload_rate));
           DLListModel->setData(DLListModel->index(row, UPSPEED), QVariant((double)torrentStatus.upload_payload_rate));
@@ -1633,7 +1633,7 @@ void GUI::torrentChecked(QString hash){
       DLListModel->setData(DLListModel->index(row, NAME), QIcon(":/Icons/skin/paused.png"), Qt::DecorationRole);
       setRowColor(row, "red");
       // Update progress in download list
-      Q_ASSERT(torrentStatus.progress <= 1.);
+      Q_ASSERT(torrentStatus.progress <= 1. && torrentStatus.progress >= 0.);
       DLListModel->setData(DLListModel->index(row, PROGRESS), QVariant((double)torrentStatus.progress));
       // Delayed Sorting
       sortProgressColumnDelayed();