diff --git a/gdk/gdkvulkancontext.c b/gdk/gdkvulkancontext.c
index 49e461ef0f..0bed5aac2d 100644
--- a/gdk/gdkvulkancontext.c
+++ b/gdk/gdkvulkancontext.c
@@ -1390,6 +1390,7 @@ gdk_display_create_vulkan_device (GdkDisplay  *display,
 
               device_extensions = g_ptr_array_new ();
               g_ptr_array_add (device_extensions, (gpointer) VK_KHR_SWAPCHAIN_EXTENSION_NAME);
+              g_ptr_array_add (device_extensions, (gpointer) VK_KHR_SHADER_NON_SEMANTIC_INFO_EXTENSION_NAME);
               g_ptr_array_add (device_extensions, (gpointer) VK_KHR_MAINTENANCE_3_EXTENSION_NAME);
               g_ptr_array_add (device_extensions, (gpointer) VK_EXT_DESCRIPTOR_INDEXING_EXTENSION_NAME);
               if (has_incremental_present)
diff --git a/gsk/vulkan/resources/color.frag b/gsk/vulkan/resources/color.frag
index e0371362a1..1d1d576fec 100644
--- a/gsk/vulkan/resources/color.frag
+++ b/gsk/vulkan/resources/color.frag
@@ -1,4 +1,5 @@
-#version 420 core
+#version 450
+#extension GL_EXT_debug_printf : enable
 
 #include "clip.frag.glsl"
 #include "rect.frag.glsl"