diff --git a/compat/terminal.c b/compat/terminal.c
index 83d95e8656301d..0afda730f278cc 100644
--- a/compat/terminal.c
+++ b/compat/terminal.c
@@ -479,10 +479,13 @@ struct escape_sequence_entry {
 };
 
 static int sequence_entry_cmp(const void *hashmap_cmp_fn_data UNUSED,
-			      const struct escape_sequence_entry *e1,
-			      const struct escape_sequence_entry *e2,
+			      const struct hashmap_entry *he1,
+			      const struct hashmap_entry *he2,
 			      const void *keydata)
 {
+	const struct escape_sequence_entry
+		*e1 = container_of(he1, const struct escape_sequence_entry, entry),
+		*e2 = container_of(he2, const struct escape_sequence_entry, entry);
 	return strcmp(e1->sequence, keydata ? keydata : e2->sequence);
 }
 
@@ -496,8 +499,7 @@ static int is_known_escape_sequence(const char *sequence)
 		struct strbuf buf = STRBUF_INIT;
 		char *p, *eol;
 
-		hashmap_init(&sequences, (hashmap_cmp_fn)sequence_entry_cmp,
-			     NULL, 0);
+		hashmap_init(&sequences, sequence_entry_cmp, NULL, 0);
 
 		strvec_pushl(&cp.args, "infocmp", "-L", "-1", NULL);
 		if (pipe_command(&cp, NULL, 0, &buf, 0, NULL, 0))
diff --git a/range-diff.c b/range-diff.c
index 2e86063491e11f..ca5493984a59c8 100644
--- a/range-diff.c
+++ b/range-diff.c
@@ -230,16 +230,19 @@ static int read_patches(const char *range, struct string_list *list,
 }
 
 static int patch_util_cmp(const void *cmp_data UNUSED,
-			  const struct patch_util *a,
-			  const struct patch_util *b,
-			  const char *keydata)
+			  const struct hashmap_entry *ha,
+			  const struct hashmap_entry *hb,
+			  const void *keydata)
 {
+	const struct patch_util
+		*a = container_of(ha, const struct patch_util, e),
+		*b = container_of(hb, const struct patch_util, e);
 	return strcmp(a->diff, keydata ? keydata : b->diff);
 }
 
 static void find_exact_matches(struct string_list *a, struct string_list *b)
 {
-	struct hashmap map = HASHMAP_INIT((hashmap_cmp_fn)patch_util_cmp, NULL);
+	struct hashmap map = HASHMAP_INIT(patch_util_cmp, NULL);
 	int i;
 
 	/* First, add the patches of a to a hash map */