diff --git a/changelog/fix_an_error_for_layout_hash_alignment.md b/changelog/fix_an_error_for_layout_hash_alignment.md
new file mode 100644
index 00000000000..282dd3237b8
--- /dev/null
+++ b/changelog/fix_an_error_for_layout_hash_alignment.md
@@ -0,0 +1 @@
+* [#9914](https://github.com/rubocop/rubocop/issues/9914): Fix an error for `Layout/HashAlignment` when using aligned hash argument for `proc.()`. ([@koic][])
diff --git a/lib/rubocop/cop/layout/hash_alignment.rb b/lib/rubocop/cop/layout/hash_alignment.rb
index 9ff70a1d94e..d94b5291fac 100644
--- a/lib/rubocop/cop/layout/hash_alignment.rb
+++ b/lib/rubocop/cop/layout/hash_alignment.rb
@@ -220,7 +220,7 @@ def on_hash(node)
         def autocorrect_incompatible_with_other_cops?(node)
           enforce_first_argument_with_fixed_indentation? &&
             node.pairs.any? &&
-            node.parent&.call_type? && node.parent.loc.selector.line == node.pairs.first.loc.line
+            node.parent&.call_type? && node.parent.loc.selector&.line == node.pairs.first.loc.line
         end
 
         def reset!
diff --git a/spec/rubocop/cop/layout/hash_alignment_spec.rb b/spec/rubocop/cop/layout/hash_alignment_spec.rb
index 946c06ac3b2..2b41ae05610 100644
--- a/spec/rubocop/cop/layout/hash_alignment_spec.rb
+++ b/spec/rubocop/cop/layout/hash_alignment_spec.rb
@@ -177,6 +177,12 @@ def example
         foo({})
       RUBY
     end
+
+    it 'does not register an offense using aligned hash argument for `proc.()`' do
+      expect_no_offenses(<<~RUBY)
+        proc.(key: value)
+      RUBY
+    end
   end
 
   context 'always ignore last argument hash' do