diff --git a/.github/workflows/build_docker.yml b/.github/workflows/build_docker.yml
index b7e6b9b28..b1384a266 100644
--- a/.github/workflows/build_docker.yml
+++ b/.github/workflows/build_docker.yml
@@ -22,7 +22,7 @@ jobs:
 
       - name: Build Docker image (Windows)
         run: |
-          docker build -t "rrdash/tomb1main:latest" . -f docker/game/win/Dockerfile
+          docker build -t "rrdash/tomb1main:latest" . -f docker/game-win/Dockerfile
           docker push "rrdash/tomb1main:latest"
 
   publish_docker_image_linux:
@@ -43,5 +43,5 @@ jobs:
 
       - name: Build Docker image (Linux)
         run: |
-          docker build -t "rrdash/tomb1main-linux:latest" . -f docker/game/linux/Dockerfile
+          docker build -t "rrdash/tomb1main-linux:latest" . -f docker/game-linux/Dockerfile
           docker push "rrdash/tomb1main-linux:latest"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1bb5b30a5..5e1325417 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -36,7 +36,7 @@ jobs:
   publish_release:
     name: Create a GitHub release
     runs-on: ubuntu-latest
-    needs: [build_game_win, build_installer]
+    needs: [build_game_win, build_game_linux, build_installer]
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
diff --git a/docker/game-linux/Dockerfile b/docker/game-linux/Dockerfile
index a44499f2b..f1c460573 100644
--- a/docker/game-linux/Dockerfile
+++ b/docker/game-linux/Dockerfile
@@ -20,7 +20,7 @@ RUN apt-get update \
 
 
 # libav
-FROM base as libav
+FROM base AS libav
 RUN apt-get install -y \
     nasm \
     gcc \
@@ -68,7 +68,7 @@ RUN cd FFmpeg \
 
 
 # SDL
-FROM base as sdl
+FROM base AS sdl
 RUN git clone https://github.com/libsdl-org/SDL -b SDL2
 RUN apt-get install -y \
     libgl1-mesa-dev \
diff --git a/docker/game-linux/entrypoint.sh b/docker/game-linux/entrypoint.sh
index 720b29a52..e071d4284 100755
--- a/docker/game-linux/entrypoint.sh
+++ b/docker/game-linux/entrypoint.sh
@@ -11,8 +11,8 @@ fi
 cd /app/build/linux; meson compile
 
 if [ "$TARGET" = release ]; then
-    for file in Tomb1Main; do
-        upx -t "$file" || ( strip "$file" && upx "$file" )
-    done
+    exe_file=Tomb1Main
+    if ! upx -t "$exe_file"; then
+        strip "$exe_file" && upx "$exe_file"
+    fi
 fi
-
diff --git a/src/game/inject.c b/src/game/inject.c
index 304a3be9d..5f687edf3 100644
--- a/src/game/inject.c
+++ b/src/game/inject.c
@@ -1490,7 +1490,7 @@ static void Inject_AddRoomFace(INJECTION *injection)
 
     // Increment the relevant number of faces and work out the
     // starting point in the mesh for the injection.
-    int inject_pos;
+    int inject_pos = 0;
     int num_data = r->data[data_index]; // Quads
     if (face_type == FT_TEXTURED_QUAD) {
         r->data[data_index]++;
diff --git a/src/game/overlay.c b/src/game/overlay.c
index 4aa1cfdb6..f257c61a9 100644
--- a/src/game/overlay.c
+++ b/src/game/overlay.c
@@ -339,7 +339,7 @@ static void Overlay_DrawPickup3D(DISPLAY_PICKUP_INFO *pu)
     int32_t src_x = padding_x + (pu->grid_x + 1.0f) * pickup_width;
     int32_t src_y = 0;
 
-    float ease;
+    float ease = 1.0f;
     switch (pu->phase) {
     case DPP_EASE_IN:
         ease = Overlay_Ease(pu->duration, MAX_PICKUP_DURATION_EASE_IN);