diff --git a/src/main.lua b/src/main.lua
index 64a1bc0..79663d6 100644
--- a/src/main.lua
+++ b/src/main.lua
@@ -118,7 +118,7 @@ function love.keypressed(k, b)
   if k == "-" then
     volume = volume == 0 and 0 or volume - 5
     love.audio.setVolume(volume / 100)
-  elseif k == "+" then
+  elseif k == "=" then
     volume = volume == 100 and 100 or volume + 5
     love.audio.setVolume(volume / 100)
   end