diff --git a/lib/libc/newlib/libc-hooks.c b/lib/libc/newlib/libc-hooks.c
index 0b73dc3f88c..2bc2ea2599b 100644
--- a/lib/libc/newlib/libc-hooks.c
+++ b/lib/libc/newlib/libc-hooks.c
@@ -76,11 +76,7 @@ static int malloc_prepare(struct device *unused)
 {
 	ARG_UNUSED(unused);
 
-#if CONFIG_NEWLIB_LIBC_ALIGNED_HEAP_SIZE
-	z_malloc_partition.start = (uint32_t)heap_base;
-#else
 	z_malloc_partition.start = HEAP_BASE;
-#endif
 	z_malloc_partition.size = MAX_HEAP_SIZE;
 	z_malloc_partition.attr = K_MEM_PARTITION_P_RW_U_RW;
 	return 0;