diff --git a/src/mathed/InsetMathNest.cpp b/src/mathed/InsetMathNest.cpp
index c44a843e82..e6c8f2eafc 100644
--- a/src/mathed/InsetMathNest.cpp
+++ b/src/mathed/InsetMathNest.cpp
@@ -808,7 +808,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
 				cur.insert(arg);
 			break;
 		}
-		// Don't record undo steps if we are in macro mode and
+		// Don't record undo steps if we are in macro mode and thus
 		// cmd.argument is the next character of the macro name.
 		// Otherwise we'll get an invalid cursor if we undo after
 		// the macro was finished and the macro is a known command,
@@ -817,14 +817,9 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
 		// InsetMathFrac -> a pos value > 0 is invalid.
 		// A side effect is that an undo before the macro is finished
 		// undoes the complete macro, not only the last character.
-		if (!cur.inMacroMode()) {
-			MathMacro const * macro = 0;
-			if (cur.pos() > 0 && cmd.argument() != "\\")
-				macro = cur.inset().asInsetMath()->asMacro();
-			
-			if (!macro)
-				cur.recordUndoSelection();
-		}
+		// At the time we hit '\' we are not in macro mode, still.
+		if (!cur.inMacroMode())
+			cur.recordUndoSelection();
 
 		// spacial handling of space. If we insert an inset
 		// via macro mode, we want to put the cursor inside it