diff --git a/base/runtime/core_builtin.odin b/base/runtime/core_builtin.odin
index bc201b6e1..e2ba14f3a 100644
--- a/base/runtime/core_builtin.odin
+++ b/base/runtime/core_builtin.odin
@@ -67,7 +67,7 @@ init_global_temporary_allocator :: proc(size: int, backup_allocator := context.a
 // Prefer the procedure group `copy`.
 @builtin
 copy_slice :: proc "contextless" (dst, src: $T/[]$E) -> int {
-	n := max(0, min(len(dst), len(src)))
+	n := min(len(dst), len(src))
 	if n > 0 {
 		intrinsics.mem_copy(raw_data(dst), raw_data(src), n*size_of(E))
 	}
@@ -80,7 +80,7 @@ copy_slice :: proc "contextless" (dst, src: $T/[]$E) -> int {
 // Prefer the procedure group `copy`.
 @builtin
 copy_from_string :: proc "contextless" (dst: $T/[]$E/u8, src: $S/string) -> int {
-	n := max(0, min(len(dst), len(src)))
+	n := min(len(dst), len(src))
 	if n > 0 {
 		intrinsics.mem_copy(raw_data(dst), raw_data(src), n)
 	}