diff --git a/src/unit_test_fqreader.cpp b/src/unit_test_fqreader.cpp
index 9379cdb8dab15b7c5aa053a6bd30d6a7a97cee54..46c3df9a2e2125af790d7461c9437822cc336a96 100644
--- a/src/unit_test_fqreader.cpp
+++ b/src/unit_test_fqreader.cpp
@@ -717,7 +717,7 @@ void test_processBufPEWithPlusChar() {
     i_dim::iterator it_offs;
     k_dim::iterator it_struct;
     unsigned char f_id1=1;
-    std::string bufstr_PE1="@SRR001666.4 071112_SLXA-EAS1_s_7:5:1:792:346/2\n\
+    std::string bufstr_PE1="@SRR001666.4 + @071112_SLXA-EAS1_+s_7:5:1:792:346/2\n\
 AAAGTTAACGAACGCGCGAAAGGTCTGGAAGGTATC\n\
 +\n\
 IIIIIIII@+IIIIIIIIB@7IIF=III+CIID0I+\n\
@@ -729,7 +729,7 @@ AAAA/EEEE#########EEEE###############E##############EE#EEEE#E#EE#/EEEEEEEAEEE#EE
 ATTATATGATGCAGTAAAAGCCATTGGTGAAGAGCTATGCCCACAATTAGGTATTACTATTCCGGTGGGTAAGGACTCAATGTCCATGAAAACGCGTTGGCAAGATGATCAAGGGAAAACGAAAGAAGTTATTTCACCGCTCTCTTTAGTT\n\
 +\n\
 AAAAAEEEEEEEEEEEEE/EEEEEEEEEEEEEEEEEEEEE<EEEAEEEEA<EAEEEEEEEAAAAE<EEEE/EEEEAAEEEEEEE<EEEEAAEEE<AE<EE<EEEEAEE/EE/EEEE<EE/EE/E/EEEEEAE<E</<<<AE<AAAEEE/AE\n";
-    std::string bufstr_PE2="@SRR001666.4 071112_SLXA-EAS1_s_7:5:1:792:346/2\n\
+    std::string bufstr_PE2="@SRR001666.4 + @071112_SLXA-EAS1_+s_7:5:1:792:346/2\n\
 AAAGTTAACGAACGCGCGAAAGGTCTGGAAGGTATC\n\
 +\n\
 IIIIIIII@+IIIIIIIIB@7IIF=III+CIID0I+\n\