diff --git a/.github/workflows/ci-cd-web-desktop.yml b/.github/workflows/ci-cd-web-desktop.yml
index f6b769a..d829925 100644
--- a/.github/workflows/ci-cd-web-desktop.yml
+++ b/.github/workflows/ci-cd-web-desktop.yml
@@ -63,7 +63,8 @@ jobs:
         id: appdir
         run: |
           TS=$(date +%s)
-          FALLBACK_DIR="$HOME/apps/sistema.build.$TS"
+          # Use a web-specific build dir to avoid clashes with convex job
+          FALLBACK_DIR="$HOME/apps/web.build.$TS"
           mkdir -p "$FALLBACK_DIR"
           echo "Using APP_DIR (fallback)=$FALLBACK_DIR"
           echo "EFFECTIVE_APP_DIR=$FALLBACK_DIR" >> "$GITHUB_ENV"
@@ -239,8 +240,9 @@ jobs:
           set -e
           ROOT="$HOME/apps"
           KEEP=2
-          echo "Scanning $ROOT for old sistema.build.* dirs"
-          LIST=$(find "$ROOT" -maxdepth 1 -type d -name 'sistema.build.*' | sort -r || true)
+          PATTERN='web.build.*'
+          echo "Scanning $ROOT for old $PATTERN dirs"
+          LIST=$(find "$ROOT" -maxdepth 1 -type d -name "$PATTERN" | sort -r || true)
           echo "$LIST" | sed -n "1,${KEEP}p" | sed 's/^/Keeping: /' || true
           echo "$LIST" | sed "1,${KEEP}d" | while read dir; do
             [ -z "$dir" ] && continue
@@ -280,7 +282,8 @@ jobs:
         id: appdir
         run: |
           TS=$(date +%s)
-          FALLBACK_DIR="$HOME/apps/sistema.build.$TS"
+          # Use a convex-specific build dir to avoid clashes with web job
+          FALLBACK_DIR="$HOME/apps/convex.build.$TS"
           mkdir -p "$FALLBACK_DIR"
           echo "Using APP_DIR (fallback)=$FALLBACK_DIR"
           echo "EFFECTIVE_APP_DIR=$FALLBACK_DIR" >> "$GITHUB_ENV"
@@ -366,7 +369,8 @@ jobs:
           set -e
           ROOT="$HOME/apps"
           KEEP=2
-          LIST=$(find "$ROOT" -maxdepth 1 -type d -name 'sistema.build.*' | sort -r || true)
+          PATTERN='convex.build.*'
+          LIST=$(find "$ROOT" -maxdepth 1 -type d -name "$PATTERN" | sort -r || true)
           echo "$LIST" | sed -n "1,${KEEP}p" | sed 's/^/Keeping: /' || true
           echo "$LIST" | sed "1,${KEEP}d" | while read dir; do
             [ -z "$dir" ] && continue