diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f51d12d..75ddae4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,9 +30,9 @@ jobs:
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install -e .
+        python -m pip install -e .[dev]
 
-    - name: Build ops obj file and runner
+    - name: Build ops obj files and runner
       run: bash build.sh
 
     #- name: Lint code with flake8
diff --git a/build.sh b/build.sh
index f045fe9..22740fb 100644
--- a/build.sh
+++ b/build.sh
@@ -8,5 +8,6 @@ gcc -c src/copapy/stencils.c -O1 -o src/copapy/obj/stencils_x86_64_O1.o
 gcc -c src/copapy/stencils.c -O2 -o src/copapy/obj/stencils_x86_64_O2.o
 gcc -c src/copapy/stencils.c -O3 -o src/copapy/obj/stencils_x86_64_O3.o
 
+mkdir bin -p
 gcc -Wall -Wextra -Wconversion -Wsign-conversion -Wshadow -Wstrict-overflow -Werror -g src/runner/runmem2.c -o bin/runmem2
 #x86_64-w64-mingw32-gcc -Wall -Wextra -Wconversion -Wsign-conversion -Wshadow -Wstrict-overflow -Werror src/runner/runmem2.c -Wall -O3 -o bin/runmem2.exe
\ No newline at end of file