Index: llvm/test/tools/llvm-objcopy/COFF/set-flags-on-setion-added.test
===================================================================
--- /dev/null
+++ llvm/test/tools/llvm-objcopy/COFF/set-flags-on-setion-added.test
@@ -0,0 +1,23 @@
+# RUN: yaml2obj %s -o %t
+
+## Test that llvm-objcopy can add sections and set its flags in the same
+## call.
+# RUN: echo DEADBEEF > %t.sec
+# RUN: llvm-objcopy --set-section-flags=.test.section1=code --add-section=.test.section1=%t.sec --set-section-flags=.test.section2=data --add-section=.test.section2=%t.sec %t %t1
+# RUN: llvm-readobj --sections --section-data %t1 | FileCheck %s --check-prefixes=CHECK-ADD
+
+# CHECK-ADD:    Name: .test.section1
+# CHECK-ADD-NEXT:    VirtualSize: 0x9
+# CHECK-ADD-NEXT:    VirtualAddress: 0x0
+# CHECK-ADD:    Name: .test.section2
+# CHECK-ADD-NEXT:    VirtualSize: 0x9
+# CHECK-ADD-NEXT:    VirtualAddress: 0x9
+
+
+--- !COFF
+header:
+  Machine:         IMAGE_FILE_MACHINE_AMD64
+  Characteristics: [ ]
+sections:
+symbols:
+...
Index: llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
===================================================================
--- llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
+++ llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
@@ -242,7 +242,7 @@
     const auto It = Config.SetSectionFlags.find(SecName);
     if (It != Config.SetSectionFlags.end())
       Characteristics =
-          flagsToCharacteristics(It->second.NewFlags, Characteristics);
+          flagsToCharacteristics(It->second.NewFlags, 0);
     else
       Characteristics = IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_ALIGN_1BYTES;