diff --git a/src/process/ntapi_tt_map_image_as_data.c b/src/process/ntapi_tt_map_image_as_data.c
index d7171e4..3ab1a7c 100644
--- a/src/process/ntapi_tt_map_image_as_data.c
+++ b/src/process/ntapi_tt_map_image_as_data.c
@@ -97,7 +97,7 @@ int32_t __stdcall __ntapi_tt_exec_map_image_as_data(nt_executable_image * image)
 		return 0;
 
 	sec  = pe_get_image_section_tbl_addr(base);
-	pi16 = (uint16_t *)coff->num_of_sections;
+	pi16 = (uint16_t *)coff->cfh_num_of_sections;
 	if (((size_t)sec-(size_t)base + *pi16 * sizeof(*sec)) > view_size)
 		return __tt_exec_unmap_image(
 			image,base,NT_STATUS_INVALID_IMAGE_FORMAT);
@@ -106,10 +106,10 @@ int32_t __stdcall __ntapi_tt_exec_map_image_as_data(nt_executable_image * image)
 	pi16 = (uint16_t *)opt;
 	image->magic = *pi16;
 
-	pi16 = (uint16_t *)opt->opt_hdr_32.subsystem;
+	pi16 = (uint16_t *)opt->opt_hdr_32.coh_subsystem;
 	image->subsystem = *pi16;
 
-	pi16 = (uint16_t *)coff->characteristics;
+	pi16 = (uint16_t *)coff->cfh_characteristics;
 	image->characteristics = *pi16;
 
 	image->hsection = hsection;