diff --git a/src/insets/insettabular.C b/src/insets/insettabular.C
index 16c105524d..6fa185b280 100644
--- a/src/insets/insettabular.C
+++ b/src/insets/insettabular.C
@@ -501,7 +501,17 @@ void InsetTabular::doDispatch(LCursor & cur, FuncRequest & cmd)
 		}
 
 		if (cmd.button() == mouse_button::button2) {
-			cmd = FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph");
+			if (bvcur.selection()) {
+				// See comment in LyXText::dispatch why we
+				// do this
+				// FIXME This does not use paste_tabular,
+				// another reason why paste_tabular should go.
+				cap::copySelectionToStack(bvcur);
+				cmd = FuncRequest(LFUN_PASTE, "0");
+			} else {
+				cmd = FuncRequest(LFUN_PRIMARY_SELECTION_PASTE,
+				                  "paragraph");
+			}
 			doDispatch(cur, cmd);
 		}
 		break;
diff --git a/src/mathed/InsetMathNest.C b/src/mathed/InsetMathNest.C
index 7d808f0528..8dfcd7161a 100644
--- a/src/mathed/InsetMathNest.C
+++ b/src/mathed/InsetMathNest.C
@@ -1187,9 +1187,11 @@ void InsetMathNest::lfunMousePress(LCursor & cur, FuncRequest & cmd)
 		//cur.noUpdate();
 	} else if (cmd.button() == mouse_button::button2) {
 		MathArray ar;
-		if (cur.selection())
+		if (cur.selection()) {
+			// See comment in LyXText::dispatch why we do this
+			cap::copySelectionToStack(bv.cursor());
 			asArray(bv.cursor().selectionAsString(false), ar);
-		else
+		} else
 			asArray(theSelection().get(), ar);
 
 		cur.insert(ar);