diff --git a/aom_dsp/noise_model.c b/aom_dsp/noise_model.c
index c7a0003..1ad3a66 100644
--- a/aom_dsp/noise_model.c
+++ b/aom_dsp/noise_model.c
@@ -1353,7 +1353,7 @@
   if (chroma_sub[0] != chroma_sub[1]) {
     fprintf(stderr,
             "aom_wiener_denoise_2d doesn't handle different chroma "
-            "subsampling");
+            "subsampling\n");
     return 0;
   }
   init_success &= aom_flat_block_finder_init(&block_finder_full, block_size,