diff --git a/service/src/util.c b/service/src/util.c
index 31a2628..354bbca 100644
--- a/service/src/util.c
+++ b/service/src/util.c
@@ -78,13 +78,12 @@ void
 freadstr(FILE *f, char **dst)
 {
 	size_t start, len, tmp;
-	char c;
 
 	/* VULN #1: BAD CAST */
 	/* see documentation/README.md for more details */
 
 	start = ftell(f);
-	for (len = 0; (c = fgetc(f)) != EOF && c; len++);
+	for (len = 0; fgetc(f) > 0; len++);
 	fseek(f, start, SEEK_SET);
 
 	*dst = checkp(calloc(1, len + 1));