diff --git a/src/core/filecopyjob.h b/src/core/filecopyjob.h
--- a/src/core/filecopyjob.h
+++ b/src/core/filecopyjob.h
@@ -71,6 +71,7 @@
 
     bool doSuspend() Q_DECL_OVERRIDE;
     bool doResume() Q_DECL_OVERRIDE;
+    bool doKill() Q_DECL_OVERRIDE;
 
 Q_SIGNALS:
     /**
diff --git a/src/core/filecopyjob.cpp b/src/core/filecopyjob.cpp
--- a/src/core/filecopyjob.cpp
+++ b/src/core/filecopyjob.cpp
@@ -41,7 +41,7 @@
                        bool move, JobFlags flags)
         : m_sourceSize(filesize_t(-1)), m_src(src), m_dest(dest), m_moveJob(nullptr), m_copyJob(nullptr), m_delJob(nullptr),
           m_chmodJob(nullptr), m_getJob(nullptr), m_putJob(nullptr), m_permissions(permissions),
-          m_move(move), m_mustChmod(0), m_flags(flags)
+          m_move(move), m_mustChmod(0), m_bFileWritingIsInProcess(false), m_flags(flags)
     {
     }
     KIO::filesize_t m_sourceSize;
@@ -60,6 +60,7 @@
     bool m_canResume: 1;
     bool m_resumeAnswerSent: 1;
     bool m_mustChmod: 1;
+    bool m_bFileWritingIsInProcess: 1;
     JobFlags m_flags;
 
     void startBestCopyMethod();
@@ -307,9 +308,26 @@
     return true;
 }
 
+bool FileCopyJob::doKill()
+{
+    const bool res = Job::doKill();
+
+    Q_D(FileCopyJob);
+
+    // If we are interrupted in the middle of file copying,
+    // we may end up with corrupted file at the destination.
+    // It is better to clean up this file.
+    if (!isSuspended() && d->m_bFileWritingIsInProcess) {
+        KIO::file_delete(d->m_dest);
+    }
+
+    return res;
+}
+
 void FileCopyJobPrivate::slotProcessedSize(KJob *, qulonglong size)
 {
     Q_Q(FileCopyJob);
+    m_bFileWritingIsInProcess = (size > 0);
     q->setProcessedAmount(KJob::Bytes, size);
 }
 
@@ -489,6 +507,13 @@
     Q_D(FileCopyJob);
     //qDebug() << "this=" << this << "job=" << job;
     removeSubjob(job);
+
+    // If result comes from one of the file writing jobs,
+    // then we are probably not writing anymore.
+    if ((job == d->m_copyJob) || (job == d->m_putJob)) {
+        d->m_bFileWritingIsInProcess = false;
+    }
+
     // Did job have an error ?
     if (job->error()) {
         if ((job == d->m_moveJob) && (job->error() == ERR_UNSUPPORTED_ACTION)) {