diff --git a/firmware/common/si5351c.c b/firmware/common/si5351c.c
index b4ccc4de..58b614dc 100644
--- a/firmware/common/si5351c.c
+++ b/firmware/common/si5351c.c
@@ -292,7 +292,7 @@ void si5351c_configure_clock_control(const enum pll_sources source)
 
 void si5351c_set_clock_source(const enum pll_sources source)
 {
-	si5351c_configure_clock_control(PLL_SOURCE_XTAL);
+	si5351c_configure_clock_control(source);
 	active_clock_source = source;
 }