diff --git a/src/cairo-freelist-private.h b/src/cairo-freelist-private.h
index 41855f7eb..7e2036c23 100644
--- a/src/cairo-freelist-private.h
+++ b/src/cairo-freelist-private.h
@@ -26,8 +26,6 @@
 #include <stddef.h>
 
 /* Opaque implementation types. */
-struct _cairo_freelist;
-struct _cairo_freelist_node;
 typedef struct _cairo_freelist cairo_freelist_t;
 typedef struct _cairo_freelist_node cairo_freelist_node_t;