diff --git a/src/backends/ocarina-backends-c_common-mapping.adb b/src/backends/ocarina-backends-c_common-mapping.adb
index 40ae0a34a102d8ff70c468b80a0d051689f6845a..6cc893aab60c94e905ea7ede5713aa7e6005c814 100644
--- a/src/backends/ocarina-backends-c_common-mapping.adb
+++ b/src/backends/ocarina-backends-c_common-mapping.adb
@@ -2166,6 +2166,12 @@ package body Ocarina.Backends.C_Common.Mapping is
                      (C_Values.New_Pointed_Char_Value
                      (Get_Source_Name (S))),
                   Call_Profile);
+            else
+               Append_Node_To_List
+                  (Make_Defining_Identifier (CONST (C_Null),
+                     C_Conversion => False),
+                  Call_Profile);
+
             end if;
 
             Append_Node_To_List