diff --git a/src/icewmbg.cc b/src/icewmbg.cc
index 068feca3c..8712b0120 100644
--- a/src/icewmbg.cc
+++ b/src/icewmbg.cc
@@ -292,6 +292,7 @@ static bool hasImageExt(const char* name) {
             }
             if (len == 4) {
                 if (strcmp(low, "jpeg") == 0 ||
+                    (strcmp(low, "avif") == 0 && YImage::supportsFormat(low)) ||
                     (strcmp(low, "tiff") == 0 && YImage::supportsFormat(low)) ||
                     (strcmp(low, "webp") == 0 && YImage::supportsFormat(low)))
                     return true;