diff --git a/examples/perl_api_example/README.md b/examples/perl_api_example/README.md
index 54788aa..00b60cc 100644
--- a/examples/perl_api_example/README.md
+++ b/examples/perl_api_example/README.md
@@ -20,7 +20,7 @@
 * Run example from the directory `SourcetrailDB/examples/perl_api_example/src` with:
 
 ```
-$ perl example.pl --database-file-path=absolute/path/to/SourcetrailDB/examples/perl_api_example/src/example.srctrldb --source-file-path=absolute/path/to/SourcetrailDB/examples/perl_api_example/data/file.pl
+$ perl example.pl --database-file-path=absolute/path/to/SourcetrailDB/examples/perl_api_example/src/example.srctrldb --source-file-path=absolute/path/to/SourcetrailDB/examples/perl_api_example/data/file.pm
 ```
 
 ### Running with Sourcetrail
diff --git a/examples/perl_api_example/data/file.pl b/examples/perl_api_example/data/file.pm
similarity index 100%
rename from examples/perl_api_example/data/file.pl
rename to examples/perl_api_example/data/file.pm
diff --git a/examples/perl_api_example/perl_api_example.srctrlprj.in b/examples/perl_api_example/perl_api_example.srctrlprj.in
index e26f947..2f404d8 100644
--- a/examples/perl_api_example/perl_api_example.srctrlprj.in
+++ b/examples/perl_api_example/perl_api_example.srctrlprj.in
@@ -10,7 +10,7 @@
                 <source_extension>.pm</source_extension>
             </source_extensions>
             <source_paths>
-                <source_path>@PERL_API_EXAMPLE_DATA_PATH@/file.pl</source_path>
+                <source_path>@PERL_API_EXAMPLE_DATA_PATH@/file.pm</source_path>
             </source_paths>
             <status>enabled</status>
             <type>Custom Command Source Group</type>