diff --git a/bootstrap.sh b/bootstrap.sh
index 393c52d..12f0681 100644
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -120,5 +120,6 @@ if [ -f "$LOG_FILE" ]; then
         -e 's/\[[0-9]m//g' \
         -e 's/  H  //g' \
         -e 's/\[3gH  //g' \
-        -i "$LOG_FILE"
+        "$LOG_FILE" > "$LOG_FILE.clean"
+    mv "$LOG_FILE.clean" "$LOG_FILE"
 fi
diff --git a/cbuild.sh b/cbuild.sh
index a2a3ee5..320632e 100644
--- a/cbuild.sh
+++ b/cbuild.sh
@@ -91,10 +91,11 @@ do
             fi
             if ask_yn "create default cbuild project config?"; then
                 project_config_path="$new_project_dir/project.config"
-                cp "$CBUILD_INSTALL_DIR/default.config" "$project_config_path"
+                cp "$CBUILD_INSTALL_DIR/default.config" "$project_config_path.temp"
                 myprint "Enter project name: "
                 read -r project_name
-                sed -i "s,\%PROJECT_NAME\%,$project_name,g" "$project_config_path"
+                sed "s,\%PROJECT_NAME\%,$project_name,g" "$project_config_path.temp" > "$project_config_path"
+                rm "$project_config_path.temp"
                 myprint "${GREEN}created config at '$project_config_path'"
             fi
             if ask_yn "Copy default .gitignore?"; then