diff --git a/c/opendht_c.h b/c/opendht_c.h
index a07830fc1a76fc45e8a4cf5c4b8a63c41c894e9c..cf67a0f896520f52e844d2c14aa6719e142720dd 100644
--- a/c/opendht_c.h
+++ b/c/opendht_c.h
@@ -36,7 +36,7 @@ struct OPENDHT_C_PUBLIC dht_data_view {
 };
 typedef struct dht_data_view dht_data_view;
 
-OPENDHT_C_PUBLIC const char* dht_version();
+OPENDHT_C_PUBLIC const char* dht_version(void);
 
 // dht::Blob
 struct OPENDHT_C_PUBLIC dht_blob;