diff --git a/src/network.h b/src/network.h
index 01a6ab90..4198c4bc 100644
--- a/src/network.h
+++ b/src/network.h
@@ -147,7 +147,7 @@ YOLODLL_API int network_height(network *net);
 
 int get_network_nuisance(network net);
 int get_network_background(network net);
-void fuse_conv_batchnorm(network net);
+YOLODLL_API void fuse_conv_batchnorm(network net);
 
 #ifdef __cplusplus
 }