diff --git a/firmware/simtrace_src/cciddriver.c b/firmware/simtrace_src/cciddriver.c
index 89e77b9b..c2d1c40a 100644
--- a/firmware/simtrace_src/cciddriver.c
+++ b/firmware/simtrace_src/cciddriver.c
@@ -120,7 +120,7 @@ static CCIDDriverConfigurationDescriptors *configurationDescriptorsFS;
 //------------------------------------------------------------------------------
 void CCIDDriver_Initialize( void )
 {
-    configurationDescriptorsFS = (CCIDDriverConfigurationDescriptors *) configurationDescriptorsArr[CFG_NUM_CCID];
+    configurationDescriptorsFS = (CCIDDriverConfigurationDescriptors *) configurationDescriptorsArr[CFG_NUM_CCID-1];
 }
 
 //------------------------------------------------------------------------------