diff --git a/src/hashmap_foo.c b/src/hashmap_foo.c
index 4cfeb90..8f2e06b 100644
--- a/src/hashmap_foo.c
+++ b/src/hashmap_foo.c
@@ -20,7 +20,7 @@ apfl_hash calc_hash_impl(void *opaque, const void *_key)
 
     const char * const *key = _key;
 
-    return apfl_hash_fnv1a(key, strlen(*key));
+    return apfl_hash_fnv1a(*key, strlen(*key));
 }
 
 void destroy_kv_impl(void *opaque, void *_data)