diff --git a/builtin/misc_register.lua b/builtin/misc_register.lua
index d1e28fda..4041fb9e 100644
--- a/builtin/misc_register.lua
+++ b/builtin/misc_register.lua
@@ -253,8 +253,8 @@ minetest.register_item(":unknown", {
 
 minetest.register_node(":air", {
 	description = "Air (you hacker you!)",
-	inventory_image = "unknown_block.png",
-	wield_image = "unknown_block.png",
+	inventory_image = "unknown_node.png",
+	wield_image = "unknown_node.png",
 	drawtype = "airlike",
 	paramtype = "light",
 	sunlight_propagates = true,
@@ -269,8 +269,8 @@ minetest.register_node(":air", {
 
 minetest.register_node(":ignore", {
 	description = "Ignore (you hacker you!)",
-	inventory_image = "unknown_block.png",
-	wield_image = "unknown_block.png",
+	inventory_image = "unknown_node.png",
+	wield_image = "unknown_node.png",
 	drawtype = "airlike",
 	paramtype = "none",
 	sunlight_propagates = false,
diff --git a/games/minimal/mods/experimental/init.lua b/games/minimal/mods/experimental/init.lua
index 2edfd0f6..6fce9698 100644
--- a/games/minimal/mods/experimental/init.lua
+++ b/games/minimal/mods/experimental/init.lua
@@ -28,10 +28,10 @@ minetest.after(1.0, switch_player_visual)
 ]]
 
 minetest.register_node("experimental:soundblock", {
-	tile_images = {"unknown_block.png", "default_tnt_bottom.png",
+	tile_images = {"unknown_node.png", "default_tnt_bottom.png",
 			"default_tnt_side.png", "default_tnt_side.png",
 			"default_tnt_side.png", "default_tnt_side.png"},
-	inventory_image = minetest.inventorycube("unknown_block.png",
+	inventory_image = minetest.inventorycube("unknown_node.png",
 			"default_tnt_side.png", "default_tnt_side.png"),
 	groups = {dig_immediate=3},
 })
diff --git a/src/content_cao.cpp b/src/content_cao.cpp
index 8bec67c8..9738dc34 100644
--- a/src/content_cao.cpp
+++ b/src/content_cao.cpp
@@ -864,7 +864,7 @@ public:
 			m_spritenode = smgr->addBillboardSceneNode(
 					NULL, v2f(1, 1), v3f(0,0,0), -1);
 			m_spritenode->setMaterialTexture(0,
-					tsrc->getTextureRaw("unknown_block.png"));
+					tsrc->getTextureRaw("unknown_node.png"));
 			m_spritenode->setMaterialFlag(video::EMF_LIGHTING, false);
 			m_spritenode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
 			m_spritenode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
@@ -1268,7 +1268,7 @@ public:
 		{
 			if(m_prop.visual == "sprite")
 			{
-				std::string texturestring = "unknown_block.png";
+				std::string texturestring = "unknown_node.png";
 				if(m_prop.textures.size() >= 1)
 					texturestring = m_prop.textures[0];
 				texturestring += mod;
@@ -1334,7 +1334,7 @@ public:
 			{
 				for (u32 i = 0; i < 6; ++i)
 				{
-					std::string texturestring = "unknown_block.png";
+					std::string texturestring = "unknown_node.png";
 					if(m_prop.textures.size() > i)
 						texturestring = m_prop.textures[i];
 					texturestring += mod;
diff --git a/src/game.cpp b/src/game.cpp
index 5e4e0614..65feb50b 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -2388,7 +2388,7 @@ void the_game(
 				infotext = narrow_to_wide(meta->getString("infotext"));
 			} else {
 				MapNode n = map.getNode(nodepos);
-				if(nodedef->get(n).tiledef[0].name == "unknown_block.png"){
+				if(nodedef->get(n).tiledef[0].name == "unknown_node.png"){
 					infotext = L"Unknown node: ";
 					infotext += narrow_to_wide(nodedef->get(n).name);
 				}
diff --git a/src/nodedef.cpp b/src/nodedef.cpp
index ca889890..e2b72333 100644
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@@ -593,7 +593,7 @@ public:
 			{
 				tiledef[j] = f->tiledef[j];
 				if(tiledef[j].name == "")
-					tiledef[j].name = "unknown_block.png";
+					tiledef[j].name = "unknown_node.png";
 			}
 
 			bool is_liquid = false;
diff --git a/textures/base/pack/unknown_block.png b/textures/base/pack/unknown_block.png
deleted file mode 100644
index a27cb8ca..00000000
Binary files a/textures/base/pack/unknown_block.png and /dev/null differ
diff --git a/textures/base/pack/unknown_node.png b/textures/base/pack/unknown_node.png
new file mode 100644
index 00000000..9cae26d5
Binary files /dev/null and b/textures/base/pack/unknown_node.png differ