diff --git a/usr.sbin/kldxref/ef.h b/usr.sbin/kldxref/ef.h
--- a/usr.sbin/kldxref/ef.h
+++ b/usr.sbin/kldxref/ef.h
@@ -226,7 +226,7 @@
  * dynamically-allocated array of GElf_Sym objects.
  */
 int	elf_read_symbols(struct elf_file *efile, int section_index,
-    long *nsymp, GElf_Sym **symp);
+    size_t *nsymp, GElf_Sym **symp);
 
 /*
  * Read a string table described by a section header of an ELF file
diff --git a/usr.sbin/kldxref/ef_obj.c b/usr.sbin/kldxref/ef_obj.c
--- a/usr.sbin/kldxref/ef_obj.c
+++ b/usr.sbin/kldxref/ef_obj.c
@@ -82,7 +82,7 @@
 	int		nrel;
 
 	GElf_Sym	*ddbsymtab;	/* The symbol table we are using */
-	long		ddbsymcnt;	/* Number of symbols */
+	size_t		ddbsymcnt;	/* Number of symbols */
 	caddr_t		ddbstrtab;	/* String table */
 	long		ddbstrcnt;	/* number of bytes in string table */
 
@@ -155,7 +155,7 @@
 {
 	const GElf_Sym *sym;
 
-	if (symidx >= (size_t)ef->ddbsymcnt)
+	if (symidx >= ef->ddbsymcnt)
 		return (0);
 	sym = ef->ddbsymtab + symidx;
 
diff --git a/usr.sbin/kldxref/elf.c b/usr.sbin/kldxref/elf.c
--- a/usr.sbin/kldxref/elf.c
+++ b/usr.sbin/kldxref/elf.c
@@ -365,14 +365,14 @@
 }
 
 int
-elf_read_symbols(struct elf_file *efile, int section_index, long *nsymp,
+elf_read_symbols(struct elf_file *efile, int section_index, size_t *nsymp,
     GElf_Sym **symp)
 {
 	GElf_Shdr shdr;
 	Elf_Scn *scn;
 	Elf_Data *data;
 	GElf_Sym *sym;
-	long i, nsym;
+	size_t i, nsym;
 
 	scn = elf_getscn(efile->ef_elf, section_index);
 	if (scn == NULL)