diff --git a/support/scripts/checkpackagelib_mk.py b/support/scripts/checkpackagelib_mk.py
index f66888d21f..0740a37f79 100644
--- a/support/scripts/checkpackagelib_mk.py
+++ b/support/scripts/checkpackagelib_mk.py
@@ -131,6 +131,58 @@ class TrailingBackslash(_CheckFunction):
                     self.lastline]
 
 
+class TypoInPackageVariable(_CheckFunction):
+    ALLOWED = re.compile("|".join([
+        "ACLOCAL_DIR",
+        "ACLOCAL_HOST_DIR",
+        "BR_CCACHE_INITIAL_SETUP",
+        "BR_NO_CHECK_HASH_FOR",
+        "LINUX_POST_PATCH_HOOKS",
+        "LINUX_TOOLS",
+        "LUA_RUN",
+        "MKFS_JFFS2",
+        "MKIMAGE_ARCH",
+        "PKG_CONFIG_HOST_BINARY",
+        "TARGET_FINALIZE_HOOKS",
+        "XTENSA_CORE_NAME"]))
+    PACKAGE_NAME = re.compile("/([^/]+)\.mk")
+    VARIABLE = re.compile("^([A-Z0-9_]+_[A-Z0-9_]+)\s*(\+|)=")
+
+    def before(self):
+        package = self.PACKAGE_NAME.search(self.filename).group(1)
+        package = package.replace("-", "_").upper()
+        # linux tools do not use LINUX_TOOL_ prefix for variables
+        package = package.replace("LINUX_TOOL_", "")
+        self.package = package
+        self.REGEX = re.compile("^(HOST_)?({}_[A-Z0-9_]+)".format(package))
+        self.FIND_VIRTUAL = re.compile(
+            "^{}_PROVIDES\s*(\+|)=\s*(.*)".format(package))
+        self.virtual = []
+
+    def check_line(self, lineno, text):
+        m = self.VARIABLE.search(text)
+        if m is None:
+            return
+
+        variable = m.group(1)
+
+        # allow to set variables for virtual package this package provides
+        v = self.FIND_VIRTUAL.search(text)
+        if v:
+            self.virtual += v.group(2).upper().split()
+            return
+        for virtual in self.virtual:
+            if variable.startswith("{}_".format(virtual)):
+                return
+
+        if self.ALLOWED.match(variable):
+            return
+        if self.REGEX.search(text) is None:
+            return ["{}:{}: possible typo: {} -> *{}*"
+                    .format(self.filename, lineno, variable, self.package),
+                    text]
+
+
 class UselessFlag(_CheckFunction):
     DEFAULT_AUTOTOOLS_FLAG = re.compile("^.*{}".format("|".join([
         "_AUTORECONF\s*=\s*NO",