diff --git a/Makefile b/Makefile
index ed45e48..02649a7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 SUBDIRS := $(wildcard */.)
-VERSION = 24.07
+VERSION = 24.08
 
 install:
 	@for dir in $(SUBDIRS) ; do \
diff --git a/mp-build/scripts/mp-build.sh b/mp-build/scripts/mp-build.sh
index a73a598..ff4c0d1 100755
--- a/mp-build/scripts/mp-build.sh
+++ b/mp-build/scripts/mp-build.sh
@@ -110,7 +110,7 @@ clean_dist() {
   rm -f "${distpath}/files.tar.gz"
 }
 
-# install a list of packages with matt 
+# install a list of packages with matt
 matt_install(){
   if [ "$EUID" -ne 0 ]; then
     if type doas > /dev/null; then
@@ -122,7 +122,7 @@ matt_install(){
       return 1
     fi
   fi
-  
+
   $DOAS matt install --yes --skip --ignore-none $@
   return $?
 }
@@ -421,6 +421,11 @@ mkdir -p "${distpath}"
 clean_dist
 
 # build the files archive
+if [ -z "$(ls -A)" ]; then
+  error "Root directory is empty, did something went wrong during build?"
+  exit 1
+fi
+
 find . -printf "%P\n" | fakeroot tar -czf "${distpath}/files.tar.gz" --no-recursion -T -
 check_ret "(1/6) Failed to create the files archive (files.tar.gz)"
 success "(1/6) Created the files archive (files.tar.gz)"
diff --git a/mp-check/main.sh b/mp-check/main.sh
index 50d7a7f..9d038b3 100755
--- a/mp-check/main.sh
+++ b/mp-check/main.sh
@@ -174,6 +174,26 @@ check_archive(){
         fail_check
       fi
     fi
+
+    if [ "${k}" == "size" ]; then
+      if [ ! -z "${line_1}" ]; then
+        size="$(echo "${line_1}" | sed 's/size= //g')"
+        size="$(echo "${size}" | sed 's/size=//g')"
+      else
+        size="$(echo "${line_2}" | sed 's/size = //g')"
+        size="$(echo "${size}" | sed 's/size =//g')"
+      fi
+
+      if [ -z "${size}" ]; then
+        error "Failed to obtain package size information"
+        fail_check
+      fi
+
+      if [ "${size}" == "0" ]; then
+        error "Package size information is set as 0, is the package empty?"
+        fail_check
+      fi
+    fi
   done
 
   name="$(head -n1 "${tmpdir}/DATA" | sed 's/\[//g')"
@@ -184,6 +204,24 @@ check_archive(){
     fail_check
   fi
 
+  case "${name}" in
+    *_*)
+      error "Package name contains an invalid character: \"_\""
+      fail_check ;;
+    *" "*)
+      error "Package name contains an invalid character: \" \""
+      fail_check ;;
+  esac
+
+  case "${version}" in
+    *_*)
+      error "Package version contains an invalid character: \"_\""
+      fail_check ;;
+    *" "*)
+      error "Package version contains an invalid character: \" \""
+      fail_check ;;
+  esac
+
   filename="${name}_${version}.mpf"
 
   info "Checking HASHES file"
@@ -208,8 +246,15 @@ check_archive(){
   done < "${tmpdir}/HASHES"
 
   info "Checking files.tar.gz archive"
+  filec=0
 
   while read p; do
+    if [ -z "${p}" ]; then
+      continue
+    fi
+
+    filec=$((filec + 1))
+
     if [ "${p:0:1}" == "." ] || [ "${p:0:1}" == "/" ]; then
       error "Root file location is invalid (${p:0:1})"
       fail_check
@@ -231,6 +276,11 @@ check_archive(){
     fi
   done < <(tar tf "${tmpdir}/files.tar.gz")
 
+  if [ "${filec}" == "0" ]; then
+    error "Package file archive is empty (no files)"
+    fail_check
+  fi
+
   info "Checking INSTALL file"
 
   if [ -f "${tmpdir}/INSTALL" ] && ! grep -q . "${tmpdir}/INSTALL"; then
diff --git a/mtsc-common/common.sh b/mtsc-common/common.sh
index 5e2e548..6db460c 100755
--- a/mtsc-common/common.sh
+++ b/mtsc-common/common.sh
@@ -228,6 +228,17 @@ check_pkg_vars() {
       return 1 ;;
   esac
 
+  case "${VERSION}" in
+    *_*)
+      error "Package version contains an invalid character: \"_\""
+      unset_indent
+      return 1 ;;
+    *" "*)
+      error "Package version contains an invalid character: \" \""
+      unset_indent
+      return 1 ;;
+  esac
+
   return 0
 }