diff --git a/usrguide/referenceguide/6-compiling_ttcn3_and_asn1_modules.adoc b/usrguide/referenceguide/6-compiling_ttcn3_and_asn1_modules.adoc
index 6a5b8ac1b585a809da400f4748d5828b1794f23c..7218ddcbf62fb3d9e967d47aaf0d63b97a929e10 100644
--- a/usrguide/referenceguide/6-compiling_ttcn3_and_asn1_modules.adoc
+++ b/usrguide/referenceguide/6-compiling_ttcn3_and_asn1_modules.adoc
@@ -844,14 +844,14 @@ Before analyzing the input modules the compiler applies some heuristics for each
 During its run, the compiler reports its activities on its standard error stream like the following. The level of detail for these messages can be controlled with the flag `-V`.
 [source]
 ----
-Notify: Parsing TTCN-3 module ’MyModule.ttcn’...
-Notify: Parsing ASN.1 module ’MyAsnModule.asn’...
+Notify: Parsing TTCN-3 module 'MyModule.ttcn'...
+Notify: Parsing ASN.1 module 'MyAsnModule.asn'...
 Notify: Checking modules...
 Notify: Generating code...
-Notify: File ‘MyModule.hh’ updated.
-Notify: File ‘MyModule.cc’ updated.
-Notify: File ‘MyAsnModule.hh’ updated.
-Notify: File ‘MyAsnModule.cc’ updated.
+Notify: File 'MyModule.hh' updated.
+Notify: File 'MyModule.cc' updated.
+Notify: File 'MyAsnModule.hh' updated.
+Notify: File 'MyAsnModule.cc' updated.
 Notify: 4 files updated.
 ----