diff --git a/conf/test_umi.config b/conf/test_umi.config
index 48f61181..c7d0db15 100644
--- a/conf/test_umi.config
+++ b/conf/test_umi.config
@@ -31,6 +31,6 @@ params {
     //UMI Specific testcase
     with_umi = true
     umitools_extract_method = 'regex'
-    umitools_bc_pattern = '.+AACTGTAGGCACCATCAAT{s<=2}(?P<umi_1>.{12})(?P<discard_2>.*)'
+    umitools_bc_pattern = '.+(?P<discard_1>AACTGTAGGCACCATCAAT){s<=2}(?P<umi_1>.{12})(?P<discard_2>.*)'
     save_umi_intermeds = true
 }