diff --git a/package/drm-info/Config.in b/package/drm-info/Config.in
index 49b8fd6f2c..1a6e11e696 100644
--- a/package/drm-info/Config.in
+++ b/package/drm-info/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_DRM_INFO
 	bool "drm_info"
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # json-c
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libdrm
 	select BR2_PACKAGE_JSON_C
 	select BR2_PACKAGE_LIBDRM
@@ -9,4 +10,5 @@ config BR2_PACKAGE_DRM_INFO
 	  https://gitlab.freedesktop.org/emersion/drm_info
 
 comment "drm_info needs a toolchain w/ threads"
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_TOOLCHAIN_HAS_THREADS