diff --git a/.github/workflows/build-sphinx-thesis.yml b/.github/workflows/build-sphinx-thesis.yml
index 5767ab7..d74aa0d 100644
--- a/.github/workflows/build-sphinx-thesis.yml
+++ b/.github/workflows/build-sphinx-thesis.yml
@@ -94,10 +94,10 @@ jobs:
         run: sed --regexp-extended --in-place 's/[{][\]indexname[}][{]Indice[}]/{\indexname}{Indice analitico}/g' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
       - name: "Remove modindex"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place 's/[\]renewcommand[{][\]indexname[}][{]Indice del modulo Python[}].*[\]end[{]sphinxtheindex[}]//gs' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
+        run: sed --regexp-extended --in-place 's/[\]renewcommand[{][\]indexname[}][{]Indice del modulo Python[}].*[\]end[{]sphinxtheindex[}]//g' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
       - name: "Remove routing table"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place 's/[\]renewcommand[{][\]indexname[}][{]HTTP Routing Table[}].*[\]end[{]sphinxtheindex[}]//gs' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
+        run: sed --regexp-extended --in-place 's/[\]renewcommand[{][\]indexname[}][{]HTTP Routing Table[}].*[\]end[{]sphinxtheindex[}]//g' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
       - name: "Build PDF document with Latexmk"
         working-directory: thesis/build/latex/
         run: make