diff --git a/README.qmd b/README.qmd
index 08a2b8c4f7b861f741312c3c54d59785e9625e9a..9f2fd596c7c331688f96ddff755bf1476b4beb70 100644
--- a/README.qmd
+++ b/README.qmd
@@ -50,7 +50,7 @@ sudo apt install borgbackup
 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 # Install delta (Ubuntu)
 wget https://github.com/dandavison/delta/releases/download/0.15.1/git-delta_0.15.1_amd64.deb && \
- dpkg -i git-delta_0.15.1_amd64.deb.deb
+ dpkg -i git-delta_0.15.1_amd64.deb
 # Install Imagemagick
 sudo apt install imagemagick
 # Install Rsync (if not already installed)
diff --git a/slides/slides.qmd b/slides/slides.qmd
index a70140a6d1149dc171d18c451a94d830a9ec3dac..d3cde59c3c0fc1a9b9acb7eaf6746b03fb27a25b 100644
--- a/slides/slides.qmd
+++ b/slides/slides.qmd
@@ -151,7 +151,7 @@ sudo apt install borgbackup
 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 # Install delta (Ubuntu)
 wget https://github.com/dandavison/delta/releases/download/0.15.1/git-delta_0.15.1_amd64.deb && \
- dpkg -i git-delta_0.15.1_amd64.deb.deb
+ dpkg -i git-delta_0.15.1_amd64.deb
 # Install Imagemagick
 sudo apt install imagemagick
 # Install Rsync (if not already installed)