diff --git a/libvips/foreign/spngload.c b/libvips/foreign/spngload.c
index cd0d4537..d9c75732 100644
--- a/libvips/foreign/spngload.c
+++ b/libvips/foreign/spngload.c
@@ -52,7 +52,7 @@
 
 #ifdef HAVE_SPNG
 
-#include <spng.h>
+#include <spng/spng.h>
 
 typedef struct _VipsForeignLoadPng {
 	VipsForeignLoad parent_object;