diff --git a/projects/github.com/AOMediaCodec/libavif/package.yml b/projects/github.com/AOMediaCodec/libavif/package.yml
index 11480310..1d13b7ec 100644
--- a/projects/github.com/AOMediaCodec/libavif/package.yml
+++ b/projects/github.com/AOMediaCodec/libavif/package.yml
@@ -32,12 +32,15 @@ provides:
   - bin/avifenc
   - bin/avifdec
 
-test: |
-  avifenc fixture.png test.avif
-  test -f test.avif
+test:
+  dependencies:
+    tea.xyz/gx/cc: c99
+  script: |
+    avifenc fixture.png test.avif
+    test -f test.avif
 
-  avifdec test.avif test.jpg
-  test -f test.jpg
+    avifdec test.avif test.jpg
+    test -f test.jpg
 
-  cc example.c -lavif
-  ./a.out test.avif
+    cc example.c -lavif
+    ./a.out test.avif