diff --git a/src/Inflection.php b/src/Inflection.php
index e222a21..4d9f4de 100644
--- a/src/Inflection.php
+++ b/src/Inflection.php
@@ -537,20 +537,20 @@ public function inflect($text, $animate = FALSE)
 
             $inflectedWord = [1 => $word];
             $word = $this->breakAccents($word);
-
+            $wordLower = strtolower($word);
             if ($gender === NULL) {
-                if (in_array($word, $this->forceM)) {
+                if (in_array($wordLower, $this->forceM)) {
                     $gender = 'm';
-                } else if (in_array($word, $this->forceF)) {
+                } else if (in_array($wordLower, $this->forceF)) {
                     $gender = 'f';
-                } else if (in_array($word, $this->forceS)) {
+                } else if (in_array($wordLower, $this->forceS)) {
                     $gender = 's';
                 }
             }
 
             $exception = NULL;
             foreach ($this->exceptions as $e) {
-                if ($word === $e[0]) {
+                if ($wordLower === $e[0]) {
                     $exception = $e;
                     break;
                 }
diff --git a/tests/InflectionTest.php b/tests/InflectionTest.php
index 44842d3..7ad2600 100644
--- a/tests/InflectionTest.php
+++ b/tests/InflectionTest.php
@@ -147,6 +147,26 @@ public function providerNames()
                        13 => 'Marcelích',
                        14 => 'Marcely'
                 )
+            ),
+            array(
+                "Dagmar", //name to inflection
+                null, //environment ? - životné - null because it is inferred from the array with exceptional words
+                array( //expected result
+                    1 => "Dagmar",
+                    2 => "Dagmary",
+                    3 => "Dagmaře",
+                    4 => "Dagmar",
+                    5 => "Dagmar",
+                    6 => "Dagmar",
+                    7 => "Dagmar",
+                    8 => 'Dagmary',
+                    9 => 'Dagmar',
+                    10 => 'Dagmarám',
+                    11 => 'Dagmary',
+                    12 => 'Dagmary',
+                    13 => 'Dagmarách',
+                    14 => 'Dagmarami'
+                )
             )
 
         );