diff --git a/demos/XMC/RT-XMC1100-XMC_2GO/Makefile b/demos/XMC/RT-XMC1100-XMC_2GO/Makefile
index 1484eabfb..3bfde6723 100644
--- a/demos/XMC/RT-XMC1100-XMC_2GO/Makefile
+++ b/demos/XMC/RT-XMC1100-XMC_2GO/Makefile
@@ -27,7 +27,7 @@ endif
 # NOTE: On XMC1100 the following symbols are mapped on the words CLK_VAL1 and
 #       CLK_VAL2.
 ifeq ($(USE_LDOPT),)
-  USE_LDOPT = --defsym=__clk_val1=0xFFFFFFFF,--defsym=__clk_val2=0xFFFFFFFF
+  USE_LDOPT = --defsym=__clk_val1=0x00010400,--defsym=__clk_val2=0x80000000
 endif
 
 # Enable this if you want link time optimizations (LTO)