diff --git a/apps/mwiniimporter/importer.cpp b/apps/mwiniimporter/importer.cpp
index cc38eed211..c3b23eff5c 100644
--- a/apps/mwiniimporter/importer.cpp
+++ b/apps/mwiniimporter/importer.cpp
@@ -11,6 +11,23 @@
 
 namespace sfs = std::filesystem;
 
+namespace
+{
+    // from configfileparser.cpp
+    std::string trim_ws(const std::string& s)
+    {
+        std::string::size_type n, n2;
+        n = s.find_first_not_of(" \t\r\n");
+        if (n == std::string::npos)
+            return std::string();
+        else
+        {
+            n2 = s.find_last_not_of(" \t\r\n");
+            return s.substr(n, n2 - n + 1);
+        }
+    }
+}
+
 MwIniImporter::MwIniImporter()
     : mVerbose(false)
     , mEncoding(ToUTF8::WINDOWS_1250)
@@ -371,6 +388,8 @@ MwIniImporter::multistrmap MwIniImporter::loadCfgFile(const std::filesystem::pat
 
         std::string key(line.substr(0, pos));
         std::string value(line.substr(pos + 1));
+        key = trim_ws(key);
+        value = trim_ws(key);
 
         if (map.find(key) == map.end())
         {