diff --git a/src/plugins/e-acsl/tests/bts/bts2191.c b/src/plugins/e-acsl/tests/bts/bts2191.c
index 0291959acba483a0cff69a91a42ae4f5bec4c6eb..8ce8acf7fa83169d40763aed125cca1b7817f8a8 100644
--- a/src/plugins/e-acsl/tests/bts/bts2191.c
+++ b/src/plugins/e-acsl/tests/bts/bts2191.c
@@ -1,3 +1,7 @@
+/* run.config
+   COMMENT: bts #2191, issue with unrolling types of struct members
+*/
+
 struct ST {
     char *str;
     int num;
diff --git a/src/plugins/e-acsl/tests/bts/oracle/gen_bts2191.c b/src/plugins/e-acsl/tests/bts/oracle/gen_bts2191.c
index 25a3068c5ea0f9f587f8b14c4fdc09d1f72ba492..a4f6f4a9c2cfbf191e30a185bfd32af30ee89ef6 100644
--- a/src/plugins/e-acsl/tests/bts/oracle/gen_bts2191.c
+++ b/src/plugins/e-acsl/tests/bts/oracle/gen_bts2191.c
@@ -44,7 +44,7 @@ int main(int argc, char **argv)
     }
     else __gen_e_acsl_and = 0;
     __e_acsl_assert(__gen_e_acsl_and,(char *)"Assertion",(char *)"main",
-                    (char *)"\\valid_read(_G[0].str)",18);
+                    (char *)"\\valid_read(_G[0].str)",22);
   }
   __retres = 0;
   __e_acsl_delete_block((void *)(_G));