diff --git a/src/mesa/drivers/dri/r300/compiler/memory_pool.c b/src/mesa/drivers/dri/r300/compiler/memory_pool.c
index 76c7c60d8f5..ddcdddf9e3c 100644
--- a/src/mesa/drivers/dri/r300/compiler/memory_pool.c
+++ b/src/mesa/drivers/dri/r300/compiler/memory_pool.c
@@ -28,7 +28,7 @@
 
 
 #define POOL_LARGE_ALLOC 4096
-#define POOL_ALIGN 4
+#define POOL_ALIGN 8
 
 
 struct memory_block {