diff --git a/lib/MC/ELFObjectWriter.cpp b/lib/MC/ELFObjectWriter.cpp
index c9e8074..4e0d5ed 100644
--- a/lib/MC/ELFObjectWriter.cpp
+++ b/lib/MC/ELFObjectWriter.cpp
@@ -1549,6 +1549,7 @@
     case ARM::fixup_arm_pcrel_10:
     case ARM::fixup_arm_adr_pcrel_12:
     case ARM::fixup_arm_thumb_bl:
+    case ARM::fixup_arm_thumb_br:
     case ARM::fixup_arm_thumb_cp:
       assert(0 && "Unimplemented"); break;
     case ARM::fixup_arm_branch: