diff --git a/sections/cper-section-ccix-per.c b/sections/cper-section-ccix-per.c
index 072c5d2..d295017 100644
--- a/sections/cper-section-ccix-per.c
+++ b/sections/cper-section-ccix-per.c
@@ -32,7 +32,7 @@
     //CCIX PER Log.
     //This is formatted as described in Section 7.3.2 of CCIX Base Specification (Rev 1.0).
     unsigned char* cur_pos = (unsigned char*)(ccix_error + 1);
-    int remaining_length = ccix_error->Length - sizeof(ccix_error);
+    int remaining_length = ccix_error->Length - sizeof(EFI_CCIX_PER_LOG_DATA);
     if (remaining_length > 0)
     {
         char* encoded = b64_encode(cur_pos, remaining_length);
@@ -67,7 +67,7 @@
     //Write CCIX PER log itself to stream.
     json_object* encoded = json_object_object_get(section, "ccixPERLog");
     UINT8* decoded = b64_decode(json_object_get_string(encoded), json_object_get_string_len(encoded));
-    fwrite(decoded, section_cper->Length - sizeof(section_cper), 1, out);
+    fwrite(decoded, section_cper->Length - sizeof(EFI_CCIX_PER_LOG_DATA), 1, out);
     fflush(out);
 
     //Free resources.