diff --git a/package/gnuplot/gnuplot.mk b/package/gnuplot/gnuplot.mk
index a68c7ae391..25ba90d8b5 100644
--- a/package/gnuplot/gnuplot.mk
+++ b/package/gnuplot/gnuplot.mk
@@ -24,7 +24,7 @@ GNUPLOT_CONF_OPT = --without-x \
 		--without-latex \
 	        --without-cairo
 
-ifeq ($(BR2_PACKAGE_GD),y)
+ifeq ($(BR2_PACKAGE_GD)$(BR2_PACKAGE_LIBPNG),yy)
 GNUPLOT_CONF_OPT += --with-gd
 GNUPLOT_DEPENDENCIES += gd
 GNUPLOT_CONF_ENV += \