diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 1867553..cc78943 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -120,7 +120,7 @@
 
 #undef __dynamic_array
 #define __dynamic_array(type, item, len)				       \
-	ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t"	       \
+	ret = trace_seq_printf(s, "\tfield:__data_loc " #type "[] " #item ";\t"\
 			       "offset:%u;\tsize:%u;\n",		       \
 			       (unsigned int)offsetof(typeof(field),	       \
 					__data_loc_##item),		       \
@@ -279,7 +279,7 @@
 
 #undef __dynamic_array
 #define __dynamic_array(type, item, len)				       \
-	ret = trace_define_field(event_call, "__data_loc" "[" #type "]", #item,\
+	ret = trace_define_field(event_call, "__data_loc " #type "[]", #item,  \
 				offsetof(typeof(field), __data_loc_##item),    \
 				 sizeof(field.__data_loc_##item), 0);