diff --git a/generator/cper-generate.c b/generator/cper-generate.c
index c14cbd3..c42e075 100644
--- a/generator/cper-generate.c
+++ b/generator/cper-generate.c
@@ -13,7 +13,7 @@
 #include "cper-generate.h"
 
 EFI_ERROR_SECTION_DESCRIPTOR *generate_section_descriptor(char *type,
-							  size_t *lengths,
+							  const size_t *lengths,
 							  int index,
 							  int num_sections);
 size_t generate_section(void **location, char *type);
@@ -117,7 +117,7 @@
 
 //Generates a single section descriptor for a section with the given properties.
 EFI_ERROR_SECTION_DESCRIPTOR *generate_section_descriptor(char *type,
-							  size_t *lengths,
+							  const size_t *lengths,
 							  int index,
 							  int num_sections)
 {