diff --git a/slpkg/sbo/greps.py b/slpkg/sbo/greps.py
index 0fea5411..9a9c8d81 100644
--- a/slpkg/sbo/greps.py
+++ b/slpkg/sbo/greps.py
@@ -116,4 +116,4 @@ class SBoGrep(Utils):
         """
         if self.meta.arch == self.arch64 and arch64:
             return arch64
-        return arch
\ No newline at end of file
+        return arch
diff --git a/slpkg/sbo/network.py b/slpkg/sbo/network.py
index 75ce1ddf..27ab1d4a 100644
--- a/slpkg/sbo/network.py
+++ b/slpkg/sbo/network.py
@@ -58,6 +58,8 @@ class SBoNetwork(BlackList, Utils):
         self.flag = flag
         self.meta = _meta_
         self.msg = Msg()
+        self.data = SBoGrep(name="").names()
+        self.check_pkg_exist()
         self.arch = SBoArch().get()
         self.comp_tar = ".tar.gz"
         self.choice = ""
@@ -71,7 +73,6 @@ class SBoNetwork(BlackList, Utils):
         self.build_folder = self.meta.build_path
         self._SOURCES = self.meta.SBo_SOURCES
         self.msg.reading()
-        self.data = SBoGrep(name="").names()
         self.case_insensitive()
         if "--checklist" in self.flag:
             self.with_checklist()
@@ -88,6 +89,11 @@ class SBoNetwork(BlackList, Utils):
         if "--checklist" not in self.flag or not self.sbo_url and self.name:
             self.msg.done()
 
+    def check_pkg_exist(self):
+        if self.name not in self.data:
+            self.msg.pkg_not_found("\n", self.name, "can't find", "\n")
+            raise SystemExit(1)
+
     def view(self):
         """View SlackBuild package, read or install them
         from slackbuilds.org
@@ -326,7 +332,7 @@ class SBoNetwork(BlackList, Utils):
             return ""
 
     def error_uns(self):
-        """Check if the package is supported by an arch
+        """Checks if the package supported by an arch
         before proceeding to install
         """
         self.FAULT = ""