diff --git a/src/preamble/packages/amsthm.tex b/src/preamble/packages/amsthm.tex
index da2d2955a6f08b719f39d2b10bfd79073cbd75be..f321e3014b5f51ab5a2dfed17e184b7d71b461f1 100644
--- a/src/preamble/packages/amsthm.tex
+++ b/src/preamble/packages/amsthm.tex
@@ -6,7 +6,7 @@
 {\bfseries}{}%
 {\newline}{}%
 \theoremstyle{break}
-\newtheorem{definizione}{Definizione}
-\newtheorem{thm}{Teorema}
+\newtheorem{definizione}{Definizione}[chapter]
+\newtheorem{thm}{Teorema}[chapter]
 \newtheorem{cor}{Corollary}[thm]
 \newtheorem{lem}[thm]{Lemma}