diff --git a/src/insexpand.c b/src/insexpand.c
index 4a807f4..387f066 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -611,7 +611,7 @@
 
     // Allocate a new match structure.
     // Copy the values to the new match structure.
-    match = (compl_T *)alloc_clear((unsigned)sizeof(compl_T));
+    match = (compl_T *)alloc_clear(sizeof(compl_T));
     if (match == NULL)
 	return FAIL;
     match->cp_number = -1;
@@ -1071,8 +1071,7 @@
 	if (compl_match_arraysize == 0)
 	    return;
 	compl_match_array = (pumitem_T *)alloc_clear(
-				    (unsigned)(sizeof(pumitem_T)
-						    * compl_match_arraysize));
+				    sizeof(pumitem_T) * compl_match_arraysize);
 	if (compl_match_array != NULL)
 	{
 	    // If the current match is the original text don't find the first