diff --git a/drivers/infiniband/hw/hfi1/efivar.c b/drivers/infiniband/hw/hfi1/efivar.c
index 7741a1d69097..2b5d264f41e5 100644
--- a/drivers/infiniband/hw/hfi1/efivar.c
+++ b/drivers/infiniband/hw/hfi1/efivar.c
@@ -112,7 +112,7 @@ int read_hfi1_efi_var(struct hfi1_devdata *dd, const char *kind,
 		      unsigned long *size, void **return_data)
 {
 	char prefix_name[64];
-	char name[64];
+	char name[128];
 	int result;
 
 	/* create a common prefix */