diff --git a/src/GenericCounter.vhd b/src/GenericCounter.vhd
index 5f92d5f..cce5533 100644
--- a/src/GenericCounter.vhd
+++ b/src/GenericCounter.vhd
@@ -108,23 +108,23 @@ entity GenericCounter is
         );
     port (
         --@ Clock input; rising edge
-        I_CLK            : in  std_logic;
+        I_CLK            : in  std_logic                              := '0';
         --@ Reset input; active high; synchronous
-        I_RST            : in  std_logic;
+        I_RST            : in  std_logic                              := '0';
         --@ Clock enable; active high
-        I_CE             : in  std_logic;
+        I_CE             : in  std_logic                              := '1';
         --@ Count enable; active high
-        I_CountEnable    : in  std_logic;
+        I_CountEnable    : in  std_logic                              := '0';
         --@ Counter Value
-        O_CounterValue   : out std_logic_vector(G_Width - 1 downto 0);
+        O_CounterValue   : out std_logic_vector(G_Width - 1 downto 0) := (others => '0');
         --@ Look ahead value
-        O_LookAheadValue : out std_logic_vector(G_Width - 1 downto 0);
+        O_LookAheadValue : out std_logic_vector(G_Width - 1 downto 0) := (others => '0');
         --@ Set with priority over the `CountEnable`
-        I_Set            : in  std_logic;
+        I_Set            : in  std_logic                              := '0';
         --@ If set is high, the counter will be set to SetValue
-        I_SetValue       : in  std_logic_vector(G_Width - 1 downto 0);
+        I_SetValue       : in  std_logic_vector(G_Width - 1 downto 0) := (others => '0');
         --@ Over- and Underflow flag
-        O_OverUnderflow  : out std_logic
+        O_OverUnderflow  : out std_logic                              := '0'
         );
 end entity GenericCounter;