diff --git a/src/isa-thumb.c b/src/isa-thumb.c
index 27c30c899..d6df01c91 100644
--- a/src/isa-thumb.c
+++ b/src/isa-thumb.c
@@ -229,6 +229,7 @@ DEFINE_INSTRUCTION_THUMB(PUSHR, )
 
 DEFINE_INSTRUCTION_THUMB(ILL, )
 DEFINE_INSTRUCTION_THUMB(BKPT, )
+DEFINE_INSTRUCTION_THUMB(B, )
 DEFINE_INSTRUCTION_THUMB(BX, )
 DEFINE_INSTRUCTION_THUMB(SWI, )
 
@@ -336,6 +337,8 @@ DEFINE_INSTRUCTION_THUMB(SWI, )
 	DO_4(DECLARE_INSTRUCTION_THUMB(EMITTER, BLE)), \
 	DO_4(DECLARE_INSTRUCTION_THUMB(EMITTER, ILL)), \
 	DO_4(DECLARE_INSTRUCTION_THUMB(EMITTER, SWI)), \
+	DO_8(DO_4(DECLARE_INSTRUCTION_THUMB(EMITTER, B))), \
+	DO_8(DO_4(DECLARE_INSTRUCTION_THUMB(EMITTER, ILL))), \
 
 static const ThumbInstruction _thumbTable[0x400] = {
 	DECLARE_THUMB_EMITTER_BLOCK(_ThumbInstruction)