diff --git a/clang/lib/Format/WhitespaceManager.cpp b/clang/lib/Format/WhitespaceManager.cpp
--- a/clang/lib/Format/WhitespaceManager.cpp
+++ b/clang/lib/Format/WhitespaceManager.cpp
@@ -609,7 +609,8 @@
       ++CommasBeforeMatch;
     } else if (Changes[i].indentAndNestingLevel() > IndentAndNestingLevel) {
       // Call AlignTokens recursively, skipping over this scope block.
-      unsigned StoppedAt = AlignTokens(Style, Matches, Changes, i, ACS);
+      unsigned StoppedAt =
+          AlignTokens(Style, Matches, Changes, i, ACS, RightJustify);
       i = StoppedAt - 1;
       continue;
     }
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -17693,6 +17693,20 @@
                "dvsdsv        <<= 5;\n"
                "int dsvvdvsdvvv = 123;",
                Alignment);
+  verifyFormat("int xxx = 5;\n"
+               "xxx     = 5;\n"
+               "{\n"
+               "  int yyy = 6;\n"
+               "  yyy     = 6;\n"
+               "}",
+               Alignment);
+  verifyFormat("int xxx = 5;\n"
+               "xxx    += 5;\n"
+               "{\n"
+               "  int yyy = 6;\n"
+               "  yyy    += 6;\n"
+               "}",
+               Alignment);
   // Test that `<=` is not treated as a compound assignment.
   verifyFormat("aa &= 5;\n"
                "b <= 10;\n"