diff --git a/src/cpu/amd/mtrr/amd_mtrr.c b/src/cpu/amd/mtrr/amd_mtrr.c
index d17eedd..58f44dd 100644
--- a/src/cpu/amd/mtrr/amd_mtrr.c
+++ b/src/cpu/amd/mtrr/amd_mtrr.c
@@ -19,5 +19,5 @@
 	printk(BIOS_INFO, "%s: uma size 0x%08x, memory start 0x%08x\n",
 			__func__, uma_size, uma_base);
 
-	uma_resource(nb, idx, uma_base / KiB, uma_size / KiB);
+	uma_resource_kb(nb, idx, uma_base / KiB, uma_size / KiB);
 }