diff --git a/ChangeLog b/ChangeLog
index 87bc6d67..cf3770a0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2021-05-04 Markus Gans  <guru.mail@muenster.de>
+	* Prevent flickering when resizing terminals or redrawing 
+	  the screen via ctrl-l
+
 2021-05-02 Markus Gans  <guru.mail@muenster.de>
 	* Bugfix for sending multiple SIGWINCH signals from 
 	  gnome-terminal under Wayland
diff --git a/src/fvterm.cpp b/src/fvterm.cpp
index 348784fb..c75038a3 100644
--- a/src/fvterm.cpp
+++ b/src/fvterm.cpp
@@ -2058,7 +2058,8 @@ bool FVTerm::clearTerm (wchar_t fillchar) const
   appendAttributes (next_attribute);
 
   if ( ! ( (cl || cd || cb) && (normal || ut) )
-    || fillchar != L' ' )
+    || fillchar != L' '
+    || ! draw_completed )
   {
     return false;
   }
diff --git a/src/fwidget.cpp b/src/fwidget.cpp
index c49dbcf1..057128f1 100644
--- a/src/fwidget.cpp
+++ b/src/fwidget.cpp
@@ -949,7 +949,9 @@ void FWidget::resize()
 
     resizeVTerm (term_geometry.getSize());
     resizeArea (term_geometry, getShadow(), getVirtualDesktop());
+    startDrawing();  // Avoid flickering - no update during adjustment
     adjustSizeGlobal();
+    finishDrawing();
   }
   else
     adjustSize();
diff --git a/test/ftermdata-test.cpp b/test/ftermdata-test.cpp
index 0d07d827..2ffaa704 100644
--- a/test/ftermdata-test.cpp
+++ b/test/ftermdata-test.cpp
@@ -258,8 +258,14 @@ void FTermDataTest::dataTest()
   CPPUNIT_ASSERT ( data.isMonochron() == true );
 
   CPPUNIT_ASSERT ( data.hasTermResized() == false );
-  data.setTermResized (true);
+  data.setTermResized (true);  // one signal
   CPPUNIT_ASSERT ( data.hasTermResized() == true );
+  data.setTermResized (true);  // two signals
+  CPPUNIT_ASSERT ( data.hasTermResized() == true );
+  data.setTermResized (false);  // one signal
+  CPPUNIT_ASSERT ( data.hasTermResized() == true );
+  data.setTermResized (false);  // no signal
+  CPPUNIT_ASSERT ( data.hasTermResized() == false );
 }