diff --git a/shared-core/nouveau_mem.c b/shared-core/nouveau_mem.c
index e2f0b38d..448b69d3 100644
--- a/shared-core/nouveau_mem.c
+++ b/shared-core/nouveau_mem.c
@@ -223,7 +223,7 @@ void nouveau_mem_close(struct drm_device *dev)
 static uint32_t
 nouveau_mem_fb_amount_igp(struct drm_device *dev)
 {
-#if defined(LINUX) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19))
+#if defined(__linux__) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19))
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct pci_dev *bridge;
 	uint32_t mem;