diff --git a/arch/arm/src/armv7-a/Toolchain.defs b/arch/arm/src/armv7-a/Toolchain.defs
index 31fce70b92..38ea1511ce 100644
--- a/arch/arm/src/armv7-a/Toolchain.defs
+++ b/arch/arm/src/armv7-a/Toolchain.defs
@@ -35,7 +35,7 @@ else ifeq ($(CONFIG_ARCH_CORTEXA9),y)
 endif
 
 ifeq ($(CONFIG_ARM_THUMB),y)
-  LLVM_ARCHTYPE := thumbv7
+  LLVM_ARCHTYPE := thumbv7a
 else
   LLVM_ARCHTYPE := armv7a
 endif