diff --git a/misc/build.func b/misc/build.func
index 49658b8..a688e42 100644
--- a/misc/build.func
+++ b/misc/build.func
@@ -1097,8 +1097,6 @@ select_distribution() {
     [[ "$default" == "debian" ]] && debian_flag="on" || debian_flag="off"
     [[ "$default" == "ubuntu" ]] && ubuntu_flag="on" || ubuntu_flag="off"
 
-    printf "DEBUG: default=%s | debian_flag=%s | ubuntu_flag=%s\n" "$default" "$debian_flag" "$ubuntu_flag"
-
     while [[ -z "$var_os" ]]; do
         exec 3>&1
         result=$(dialog --clear \
@@ -1115,8 +1113,6 @@ select_distribution() {
         exitcode=$?
         exec 3>&-
 
-        printf "DEBUG: exitcode=%s | result=%s\n" "$exitcode" "$result"
-
         case "$exitcode" in
         0)
             if [[ "$result" =~ ^(debian|ubuntu)$ ]]; then
@@ -1124,19 +1120,17 @@ select_distribution() {
                 printf "%bOperating System: %b%s%b\n" "$OS$BOLD$DGN" "$BGN" "$var_os" "$CL"
                 return 0
             else
-                printf "DEBUG: Invalid result on OK: '%s'\n" "$result"
+                printf "[DEBUG] No valid selection made (result='%s'), repeating...\n" "$result"
             fi
             ;;
         3)
-            printf "DEBUG: User pressed Back (exitcode 3)\n"
             return 2
             ;;
         1 | 255)
-            printf "DEBUG: User pressed Cancel or ESC (exitcode: %s)\n" "$exitcode"
             return 1
             ;;
         *)
-            printf "DEBUG: Unknown exitcode: %s\n" "$exitcode"
+            printf "[DEBUG] Unexpected exit code: %s\n" "$exitcode" >&2
             return 1
             ;;
         esac