diff --git a/data/chart.xsl b/data/chart.xsl
index a8d2f94..2377d8f 100644
--- a/data/chart.xsl
+++ b/data/chart.xsl
@@ -16,7 +16,7 @@
     <xsl:variable name="r_aspect" select="240" />
 
     <xsl:template match="/">
-        <xsl:processing-instruction name="xml-stylesheet">href="test.css" type="text/css"</xsl:processing-instruction>
+        <xsl:processing-instruction name="xml-stylesheet">href="<xsl:value-of select="$css_file"/>" type="text/css"</xsl:processing-instruction>
         <svg
             xmlns="http://www.w3.org/2000/svg"
             xmlns:xlink="http://www.w3.org/1999/xlink"
diff --git a/src/ag-chart.c b/src/ag-chart.c
index 48fd952..da4f296 100644
--- a/src/ag-chart.c
+++ b/src/ag-chart.c
@@ -671,8 +671,12 @@ ag_chart_create_svg(AgChart *chart, GError **err)
                node = NULL;
     gchar *value,
           *stylesheet_path,
+          *css_path,
           *xslt,
-          *save_content = NULL;
+          *save_content = NULL,
+          *css_uri,
+          *css_final_uri,
+          **params;
     GList *houses,
           *house,
           *planet,
@@ -685,7 +689,8 @@ ag_chart_create_svg(AgChart *chart, GError **err)
                *antiscia_class;
     guint xslt_length;
     gint save_length;
-    GFile *xslt_file;
+    GFile *xslt_file,
+          *css_file;
     xsltStylesheetPtr xslt_proc;
     locale_t current_locale;
 
@@ -838,9 +843,17 @@ ag_chart_create_svg(AgChart *chart, GError **err)
         return NULL;
     }
 
+    css_path = g_strdup_printf("%s/%s", PKGDATADIR, "chart.css");
+    g_debug("Using %s as a CSS stylesheet", css_path);
+    css_file = g_file_new_for_path(css_path);
+    css_uri = g_file_get_uri(css_file);
+
     if ((xslt_doc = xmlReadMemory(xslt, xslt_length, "chart.xsl", NULL, 0)) == NULL) {
         g_set_error(err, AG_CHART_ERROR, AG_CHART_ERROR_CORRUPT_FILE, "File '%s' can not be parsed as a stylesheet file.", stylesheet_path);
         g_free(stylesheet_path);
+        g_free(css_path);
+        g_free(css_uri);
+        g_object_unref(css_file);
         g_free(xslt);
         xmlFreeDoc(doc);
 
@@ -850,21 +863,32 @@ ag_chart_create_svg(AgChart *chart, GError **err)
     if ((xslt_proc = xsltParseStylesheetDoc(xslt_doc)) == NULL) {
         g_set_error(err, AG_CHART_ERROR, AG_CHART_ERROR_CORRUPT_FILE, "File '%s' can not be parsed as a stylesheet file.", stylesheet_path);
         g_free(stylesheet_path);
+        g_free(css_path);
         g_free(xslt);
+        g_free(css_uri);
+        g_object_unref(css_file);
         xmlFreeDoc(xslt_doc);
         xmlFreeDoc(doc);
 
         return NULL;
     }
 
+    css_final_uri = g_strdup_printf("'%s'", css_uri);
+    g_free(css_uri);
+    params = g_new0(gchar *, 3);
+    params[0] = "css_file";
+    params[1] = css_final_uri;
     // libxml2 messes up the output, as it prints decimal floating point
     // numbers in a localized format. It is not good in locales that use a
     // character for decimal separator other than a dot. So let's just use the
     // C locale until the SVG is generated.
     current_locale = uselocale(newlocale(LC_ALL, "C", 0));
-    svg_doc = xsltApplyStylesheet(xslt_proc, doc, NULL);
+    svg_doc = xsltApplyStylesheet(xslt_proc, doc, (const char **)params);
     uselocale(current_locale);
     g_free(stylesheet_path);
+    g_free(css_path);
+    g_object_unref(css_file);
+    g_free(params);
     xsltFreeStylesheet(xslt_proc);
     xmlFreeDoc(doc);