diff --git a/tests/xua_unit_tests/src/xua_unit_test_helper.xc b/tests/xua_unit_tests/src/xua_unit_test_helper.xc
index d4c2911c..a2df0db9 100644
--- a/tests/xua_unit_tests/src/xua_unit_test_helper.xc
+++ b/tests/xua_unit_tests/src/xua_unit_test_helper.xc
@@ -13,7 +13,7 @@ in port p_mclk_in                   = XS1_PORT_1D;
 
 /* Clock-block declarations */
 clock clk_audio_bclk                = on tile[0]: XS1_CLKBLK_1;   /* Bit clock */
-clock clk_audio_mclk                = on tile[0]: XS1_CLKBLK_4;   /* Master clock */
+clock clk_audio_mclk                = on tile[0]: XS1_CLKBLK_2;   /* Master clock */
 
 // Supply missing but unused function
 void AudioHwConfig(unsigned samFreq, unsigned mClk, unsigned dsdMode, unsigned sampRes_DAC, unsigned sampRes_ADC)