diff --git a/support/export/export.c b/support/export/export.c
index 4fda30a..0257903 100644
--- a/support/export/export.c
+++ b/support/export/export.c
@@ -357,7 +357,7 @@ strtoint(char *str)
 static int 
 export_hash(char *str)
 {
-	int num = strtoint(str);
+	unsigned int num = strtoint(str);
 
 	return num % HASH_TABLE_SIZE;
 }