diff --git a/src/target/armv7m.h b/src/target/armv7m.h
index 588470f11..f3445e152 100644
--- a/src/target/armv7m.h
+++ b/src/target/armv7m.h
@@ -228,7 +228,7 @@ enum {
 #define ARMV7M_COMMON_MAGIC 0x2A452A45
 
 struct armv7m_common {
-	struct arm	arm;
+	struct arm arm;
 
 	int common_magic;
 	int exception_number;