diff --git a/src/parser.c b/src/parser.c
index 184d1de3..1a324078 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -825,6 +825,11 @@ network parse_network_cfg_custom(char *filename, int batch)
         net.workspace = calloc(1, workspace_size);
 #endif
     }
+	LAYER_TYPE lt = net.layers[net.n - 1].type;
+	if ((net.w % 32 != 0 || net.h % 32 != 0) && (lt == YOLO || lt == REGION || lt == DETECTION)) {
+		printf("\n Warning: width=%d and height=%d in cfg-file must be divisible by 32 for default networks Yolo v1/v2/v3!!! \n\n",
+			net.w, net.h);
+	}
     return net;
 }