diff --git a/00_macros.md b/00_macros.md
new file mode 100644
index 0000000000000000000000000000000000000000..7dd8daa168f5ed66ffb81ac6001774aab586dafe
--- /dev/null
+++ b/00_macros.md
@@ -0,0 +1,5 @@
+  \newcommand{\ux}{\bm{x}}
+  \newcommand{\dd}{\mathrm{d}}
+  \newcommand{\real}{\mathbb{R}}
+  \newcommand{\grad}{\mathrm{grad}}
+  
\ No newline at end of file
diff --git a/Makefile b/Makefile
index fb599083c6c2c55302083bbf23a51a62748b630c..907a7702d9a351e63f5b12bab74533e2929a07b9 100644
--- a/Makefile
+++ b/Makefile
@@ -23,10 +23,10 @@ all:  cours.pdf cours.html
 # %.tex: %.md
 # 	pandoc -s $(OPTIONS) $(PDFOPTIONS) -o $@ $<
 
-cours.pdf: 01_rappel.md 02_integrales.md 03_optimisation.md 04_edo.md 05_fourier.md 06_probas_stats.md 07_remerciements.md 08_notes.md
+cours.pdf: 00_macros.md 01_rappel.md 02_integrales.md 03_optimisation.md 04_edo.md 05_fourier.md 06_probas_stats.md 07_remerciements.md 08_notes.md
 	pandoc -s $(OPTIONS) $(PDFOPTIONS) -o $@ $^ --metadata-file metadata.yaml
 
-cours.html: 01_rappel.md 02_integrales.md 03_optimisation.md 04_edo.md 05_fourier.md 06_probas_stats.md 07_remerciements.md 08_notes.md
+cours.html: 00_macros.md 01_rappel.md 02_integrales.md 03_optimisation.md 04_edo.md 05_fourier.md 06_probas_stats.md 07_remerciements.md 08_notes.md
 	pandoc -s $(OPTIONS) $(HTMLOPTIONS) -o $@ $^ --metadata-file metadata.yaml
 
 deploy: all
diff --git a/metadata.yaml b/metadata.yaml
index ebfc9a32caaa16aa91c2568a96d2f04ca777fd04..c2a99dc2a0e208a48162b8a13574fcf2b81fe501 100644
--- a/metadata.yaml
+++ b/metadata.yaml
@@ -16,14 +16,6 @@ documentclass: book
 papersize: A4
 cref: false
 urlcolor: blue
-include-before:
-- |
-  ```{=latex}
-  \newcommand{\ux}{\bm{x}}
-  \newcommand{\dd}{\mathrm{d}}
-  \newcommand{\real}{\mathbb{R}}
-  \newcommand{\grad}{\mathrm{grad}}
-  ```
 ---