Index: lib/Format/ContinuationIndenter.cpp
===================================================================
--- lib/Format/ContinuationIndenter.cpp
+++ lib/Format/ContinuationIndenter.cpp
@@ -896,12 +896,19 @@
     return std::max(State.Stack.back().LastSpace, State.Stack.back().Indent);
   if (NextNonComment->is(TT_SelectorName)) {
     if (!State.Stack.back().ObjCSelectorNameFound) {
+      unsigned MinIndent = State.Stack.back().Indent;
+      if (Style.IndentWrappedFunctionNames)
+        MinIndent = std::max(State.Stack.back().Indent,
+                             State.FirstIndent + Style.ContinuationIndentWidth);
+      // If LongestObjCSelectorName is 0, we are indenting the first
+      // part of an ObjC selector (or a selector component which is
+      // not colon-aligned due to block formatting).
       if (NextNonComment->LongestObjCSelectorName == 0)
-        return State.Stack.back().Indent;
-      return (Style.IndentWrappedFunctionNames
-                  ? std::max(State.Stack.back().Indent,
-                             State.FirstIndent + Style.ContinuationIndentWidth)
-                  : State.Stack.back().Indent) +
+        return MinIndent;
+      // Otherwise, we are indenting a subsequent part of an ObjC
+      // selector which should be colon-aligned to the longest
+      // component of the ObjC selector.
+      return MinIndent +
              std::max(NextNonComment->LongestObjCSelectorName,
                       NextNonComment->ColumnWidth) -
              NextNonComment->ColumnWidth;
Index: unittests/Format/FormatTestObjC.cpp
===================================================================
--- unittests/Format/FormatTestObjC.cpp
+++ unittests/Format/FormatTestObjC.cpp
@@ -537,6 +537,22 @@
                "       aShortf:(NSRect)theRect {\n"
                "}");
 
+  // Make sure selectors with 0, 1, or more arguments are indented
+  // when IndentWrappedFunctionNames is true.
+  verifyFormat("- (aaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+               "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n");
+  verifyFormat("- (aaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+               "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa:(int)a;\n");
+  verifyFormat("- (aaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+               "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa:(int)a\n"
+               "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa:(int)a;\n");
+  verifyFormat("- (aaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+               "     aaaaaaaaaaaaaaaaaaaaaaaaaaa:(int)a\n"
+               "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa:(int)a;\n");
+  verifyFormat("- (aaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+               "    aaaaaaaaaaaaaaaaaaaaaaaaaaaa:(int)a\n"
+               "     aaaaaaaaaaaaaaaaaaaaaaaaaaa:(int)a;\n");
+
   // Format pairs correctly.
   Style.ColumnLimit = 80;
   verifyFormat("- (void)drawRectOn:(id)surface\n"