diff --git a/icapp.c b/icapp.c
index e8acf2b..310ceaf 100644
--- a/icapp.c
+++ b/icapp.c
@@ -183,7 +183,7 @@ unsigned datagen(unsigned char *in, unsigned n, int isize, double be_mindelta) {
       if(mindelta == 0 || mindelta == 1) {                                                       	
         uint64_t *ip = (uint64_t *)in, v;										stprint("delta"); 
         for(ip[0]=0,v = 1; v < n; v++) { 
-          ip[v] += ip[v-1] + mindelta;                                     if(ip[v]>=(1u<<31)) die("overflow generating sorted array %d\n", ip[v]);  
+          ip[v] += ip[v-1] + mindelta;                                     if(ip[v]>=(1u<<31)) die("overflow generating sorted array %llu\n", ip[v]);  
         }
       } else stprint("");
       break;
diff --git a/trlec.c b/trlec.c
index 55317bb..ad3619f 100644
--- a/trlec.c
+++ b/trlec.c
@@ -230,7 +230,7 @@ unsigned trlec(const unsigned char *__restrict in, unsigned inlen, unsigned char
 	TRLEPUT(pp, ip, m, rmap, op);
 	pp = ++ip; 
   }
-  if(ip < ie) PUTC(op, *ip++);              						AS(ip == ie, "Fatal ip>ie=%d ", ip-ie);    
+  if(ip < ie) PUTC(op, *ip++);              						AS(ip == ie, "Fatal ip>ie=%td ", ip-ie);    
 
   if(op - out < inlen) 
     return op - out;       										// RETURN length = rle