diff --git a/sections/cper-section-pci-dev.c b/sections/cper-section-pci-dev.c
index 8dc899b..adc54a0 100644
--- a/sections/cper-section-pci-dev.c
+++ b/sections/cper-section-pci-dev.c
@@ -11,7 +11,7 @@
 #include <libcper/sections/cper-section-pci-dev.h>
 
 //Converts a single PCI/PCI-X device CPER section into JSON IR.
-json_object *cper_section_pci_dev_to_ir(void *section)
+json_object *cper_section_pci_dev_to_ir(const void *section)
 {
 	EFI_PCI_PCIX_DEVICE_ERROR_DATA *dev_error =
 		(EFI_PCI_PCIX_DEVICE_ERROR_DATA *)section;