diff --git a/cameo/gnuplot.h b/cameo/gnuplot.h
index 149d42f..9041e06 100644
--- a/cameo/gnuplot.h
+++ b/cameo/gnuplot.h
@@ -18,5 +18,6 @@
 
 struct path *gnuplot_read(const char *name, double r_tool_default);
 void gnuplot_write(const char *name, const struct path *paths);
+void gnuplot_append(const char *name, const struct path *paths);
 
 #endif /* !GNUPLOT_H */
diff --git a/cameo/lang.y b/cameo/lang.y
index c2a7483..9faab0c 100644
--- a/cameo/lang.y
+++ b/cameo/lang.y
@@ -192,6 +192,8 @@ command:
 			double y = $3*$5;
 
 			translate(x, y, 0);
+			xo += x;
+			yo += y;
 		}
 	| TOK_CLEAR
 		{