diff --git a/src/libecoprimer/strictprimers.c b/src/libecoprimer/strictprimers.c
index 2fe6bd6..ad78b08 100644
--- a/src/libecoprimer/strictprimers.c
+++ b/src/libecoprimer/strictprimers.c
@@ -206,7 +206,7 @@ pwordcount_t lookforStrictPrimer(pecodnadb_t database, uint32_t seqdbsize,
     			          timeval_subtract(&(usage.ru_stime),&(start.ru_stime));
     			fprintf(logfile,"%d\t%llu\t%lu\t%8.3f\t%8.3e\n",i,
     					(long long unsigned)totallength,
-					strictprimers->size*sizeof(int64_t),
+					strictprimers->size*(sizeof(int64_t)+sizeof(int32_t)),
     					seconde,seconde/(double)totallength);
     			fclose(logfile);
     		}