diff --git a/.github/workflows/build-sphinx-report.yml b/.github/workflows/build-sphinx-report.yml
index b7258f6..202fb6f 100644
--- a/.github/workflows/build-sphinx-report.yml
+++ b/.github/workflows/build-sphinx-report.yml
@@ -29,7 +29,9 @@ jobs:
         run: echo "pythonLocation=$(poetry env list --full-path | cut -f1 -d' ')/bin" >> $GITHUB_ENV
       - name: "Build HTML document with Sphinx"
         working-directory: report/
-        run: make html
+        run: |
+          source $pythonLocation/activate
+          make html
       - name: "Create a gzip of the build"
         run: "tar -xvzf report/_build/report.html.tar.gz report/_build/html"
       - name: "Upload build artifact"
@@ -61,7 +63,9 @@ jobs:
         run: apt-get update -y && apt-get install -y latexmk texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended
       - name: "Build Latex document with Sphinx"
         working-directory: report/
-        run: make latexpdf
+        run: |
+          source $pythonLocation/activate
+          make latexpdf
       - name: "Upload build artifact"
         uses: actions/upload-artifact@v2
         with:
diff --git a/.github/workflows/build-sphinx-thesis.yml b/.github/workflows/build-sphinx-thesis.yml
index ddfb785..91d27fb 100644
--- a/.github/workflows/build-sphinx-thesis.yml
+++ b/.github/workflows/build-sphinx-thesis.yml
@@ -29,7 +29,9 @@ jobs:
         run: echo "pythonLocation=$(poetry env list --full-path | cut -f1 -d' ')/bin" >> $GITHUB_ENV
       - name: "Build HTML document with Sphinx"
         working-directory: thesis/
-        run: make html
+        run: |
+          source $pythonLocation/activate
+          make html
       - name: "Create a gzip of the build"
         run: "tar -xvzf thesis/_build/thesis.html.tar.gz thesis/_build/html"
       - name: "Upload build artifact"
@@ -61,7 +63,9 @@ jobs:
         run: apt-get update -y && apt-get install -y latexmk texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended
       - name: "Build Latex document with Sphinx"
         working-directory: thesis/
-        run: make latexpdf
+        run: |
+          source $pythonLocation/activate
+          make latexpdf
       - name: "Upload build artifact"
         uses: actions/upload-artifact@v2
         with:
diff --git a/thesis/Makefile b/thesis/Makefile
index b343f0b..86bf5be 100644
--- a/thesis/Makefile
+++ b/thesis/Makefile
@@ -1,23 +1,18 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line, and also
-# from the environment for the first two.
-SPHINXOPTS    ?=
-SPHINXBUILD   ?= "sphinx-build"
-SOURCEDIR     = "source"
-BUILDDIR      = "build"
+export SPHINXOPTS    =
+export SPHINXBUILD   = "sphinx-build"
+export SOURCEDIR     = "source"
+export BUILDDIR      = "build"
 
 export LATEXMKOPTS   ?= ""
 export LATEXOPTS     ?= "-interaction=nonstopmode"
 
 # Put it first so that "make" without argument is like "make help".
 help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)
 
 
 livehtml:
-	sphinx-autobuild "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+	sphinx-autobuild "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)
 
 
 .PHONY: help Makefile
@@ -25,4 +20,4 @@ livehtml:
 # Catch-all target: route all unknown targets to Sphinx using the new
 # "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
 %: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS)