Index: lib/Format/TokenAnnotator.cpp
===================================================================
--- lib/Format/TokenAnnotator.cpp
+++ lib/Format/TokenAnnotator.cpp
@@ -3015,6 +3015,8 @@
     return false;
   if (Right.is(TT_ConditionalExpr) || Right.is(tok::question))
     return Style.BreakBeforeTernaryOperators;
+  if (Left.is(tok::question) && Right.is(TT_LambdaLSquare))
+    return true;
   if (Left.is(TT_ConditionalExpr) || Left.is(tok::question))
     return !Style.BreakBeforeTernaryOperators;
   if (Right.is(TT_InheritanceColon))
Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -4682,6 +4682,14 @@
       "aaaaaa = aaaaaaaaaaaa ? aaaaaaaaaa ? aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"
       "                                   : aaaaaaaaaaaaaaaaaaaaaa\n"
       "                      : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
+  verifyFormat(
+      "aaaaaa = aaaaaaaaaaaa ?\n"
+      "                      [&]() { //\n"
+      "                        return true;\n"
+      "                      }()\n"
+      "                          ? aaaaaaaaaaaa\n"
+      "                          : aaaaaaaaaaaaaaaaaaa\n"
+      "                      : aaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
 
   FormatStyle NoBinPacking = getLLVMStyle();
   NoBinPacking.BinPackArguments = false;