diff --git a/slpkg/binaries/install.py b/slpkg/binaries/install.py
index fbd232f2..01060511 100644
--- a/slpkg/binaries/install.py
+++ b/slpkg/binaries/install.py
@@ -82,6 +82,12 @@ class Packages(Configs):
         if not self.utils.is_option(self.flag_resolve_off, self.flags):
 
             for pkg in self.packages:
+
+                # Skip installed package when the option --skip-installed is applied.
+                if (self.utils.is_option(self.flag_skip_installed, self.flags) and
+                        self.utils.is_package_installed(pkg)):
+                    continue
+
                 self.packages_requires += Required(pkg, self.repo).resolve()
 
             # Clean dependencies from the dependencies list if already added with main packages.
@@ -124,12 +130,18 @@ class Packages(Configs):
             and continue to install if the package is upgradable or the --reinstall option
             applied.
          """
-        if self.utils.is_option(self.flag_skip_installed, self.flags):
+        if (self.utils.is_option(self.flag_skip_installed, self.flags)
+                and not self.utils.is_option(self.flag_reinstall, self.flags)):
             return False
 
-        if self.upgrade.is_package_upgradeable(name) or self.utils.is_option(self.flag_reinstall, self.flags):
+        if self.utils.is_option(self.flag_reinstall, self.flags):
             return True
 
+        if not self.upgrade.is_package_upgradeable(name):
+            return False
+
+        return True
+
     def checksum(self) -> None:
         """ Packages checksums. """
         md5 = Md5sum(self.flags)