diff --git a/Makefile b/Makefile
index bd89aa3..bfd5bad 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ DEPLOY_HOST = tengo@tuttle.uberspace.de
 223015c_KLAUSUR = 1
 
 dhbw_NAME    = Web Engineering
-dhbw_KAPITEL = 01_intro 02_html_css 03_js_frameworks 04_nodejs_basics 05_express 06_testing 07_typescript 08_docker 09_best_practices
+dhbw_KAPITEL = 01-intro 02-html-css 03-js-frameworks 04-nodejs-basics 05-express 06-testing 07-typescript 08-docker 09-best-practices
 dhbw_DEPLOY  = /home/tengo/html/dhbw
 dhbw_KLAUSUR =
 
diff --git a/slides/dhbw/01_intro.md b/slides/dhbw/01-intro.md
similarity index 100%
rename from slides/dhbw/01_intro.md
rename to slides/dhbw/01-intro.md
diff --git a/slides/dhbw/02_html_css.md b/slides/dhbw/02-html-css.md
similarity index 100%
rename from slides/dhbw/02_html_css.md
rename to slides/dhbw/02-html-css.md
diff --git a/slides/dhbw/03_js_frameworks.md b/slides/dhbw/03-js-frameworks.md
similarity index 100%
rename from slides/dhbw/03_js_frameworks.md
rename to slides/dhbw/03-js-frameworks.md
diff --git a/slides/dhbw/04_nodejs_basics.md b/slides/dhbw/04-nodejs-basics.md
similarity index 100%
rename from slides/dhbw/04_nodejs_basics.md
rename to slides/dhbw/04-nodejs-basics.md
diff --git a/slides/dhbw/05_express.md b/slides/dhbw/05-express.md
similarity index 100%
rename from slides/dhbw/05_express.md
rename to slides/dhbw/05-express.md
diff --git a/slides/dhbw/06_testing.md b/slides/dhbw/06-testing.md
similarity index 100%
rename from slides/dhbw/06_testing.md
rename to slides/dhbw/06-testing.md
diff --git a/slides/dhbw/07_typescript.md b/slides/dhbw/07-typescript.md
similarity index 100%
rename from slides/dhbw/07_typescript.md
rename to slides/dhbw/07-typescript.md
diff --git a/slides/dhbw/08_docker.md b/slides/dhbw/08-docker.md
similarity index 100%
rename from slides/dhbw/08_docker.md
rename to slides/dhbw/08-docker.md
diff --git a/slides/dhbw/09_best_practices.md b/slides/dhbw/09-best-practices.md
similarity index 100%
rename from slides/dhbw/09_best_practices.md
rename to slides/dhbw/09-best-practices.md