diff --git a/src/gallium/drivers/trace/tr_dump.c b/src/gallium/drivers/trace/tr_dump.c
index 5fb020538ee..97872be784d 100644
--- a/src/gallium/drivers/trace/tr_dump.c
+++ b/src/gallium/drivers/trace/tr_dump.c
@@ -265,8 +265,16 @@ void trace_dump_trace_end(void)
 
 void trace_dump_call_begin(const char *klass, const char *method)
 {
+   static long unsigned no = 0;
+   ++no;
    trace_dump_indent(1);
-   trace_dump_tag_begin2("call", "class", klass, "method", method);
+   trace_dump_writes("<call no=\'");
+   trace_dump_writef("%lu", no);
+   trace_dump_writes("\' class =\'");
+   trace_dump_escape(klass);
+   trace_dump_writes("\' method=\'");
+   trace_dump_escape(method);
+   trace_dump_writes("\'>");
    trace_dump_newline();
 }
 
diff --git a/src/gallium/drivers/trace/trace.xsl b/src/gallium/drivers/trace/trace.xsl
index 9cd621e7ab9..7be95e0e753 100644
--- a/src/gallium/drivers/trace/trace.xsl
+++ b/src/gallium/drivers/trace/trace.xsl
@@ -68,6 +68,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 	<xsl:template match="call">
 		<li>
+			<xsl:attribute name="value">
+				<xsl:apply-templates select="@no"/>
+			</xsl:attribute>
 			<span class="fun">
 				<xsl:value-of select="@class"/>
 				<xsl:text>::</xsl:text>