diff --git a/spa/plugins/alsa/acp/acp.c b/spa/plugins/alsa/acp/acp.c
index 3c814da86..93a68ab4c 100644
--- a/spa/plugins/alsa/acp/acp.c
+++ b/spa/plugins/alsa/acp/acp.c
@@ -1625,16 +1625,6 @@ static void prune_singleton_availability_groups(pa_hashmap *ports) {
     pa_hashmap_free(group_counts);
 }
 
-static const char *acp_dict_lookup(const struct acp_dict *dict, const char *key)
-{
-	const struct acp_dict_item *it;
-	acp_dict_for_each(it, dict) {
-		if (spa_streq(key, it->key))
-			return it->value;
-	}
-	return NULL;
-}
-
 struct acp_card *acp_card_new(uint32_t index, const struct acp_dict *props)
 {
 	pa_card *impl;
diff --git a/spa/plugins/alsa/acp/acp.h b/spa/plugins/alsa/acp/acp.h
index cc6429b22..fadf78538 100644
--- a/spa/plugins/alsa/acp/acp.h
+++ b/spa/plugins/alsa/acp/acp.h
@@ -15,6 +15,7 @@ extern "C" {
 #include <stdarg.h>
 #include <stdint.h>
 #include <poll.h>
+#include <string.h>
 
 #ifdef __GNUC__
 #define ACP_PRINTF_FUNC(fmt, arg1) __attribute__((format(printf, fmt, arg1)))
@@ -103,6 +104,15 @@ struct acp_format {
 	     (item) < &(dict)->items[(dict)->n_items];		\
 	     (item)++)
 
+static inline const char *acp_dict_lookup(const struct acp_dict *dict, const char *key)
+{
+	const struct acp_dict_item *it;
+	acp_dict_for_each(it, dict)
+		if (strcmp(key, it->key) == 0)
+			return it->value;
+	return NULL;
+}
+
 enum acp_direction {
 	ACP_DIRECTION_PLAYBACK = 1,
 	ACP_DIRECTION_CAPTURE = 2