diff --git a/home-manager/home.nix b/home-manager/home.nix
index 609880b..b26158b 100644
--- a/home-manager/home.nix
+++ b/home-manager/home.nix
@@ -21,7 +21,7 @@ let
 	GAPS_IN = "0";
 	GAPS_OUT = "40";
 	GAPS_OUT_INT = builtins.parseInt GAPS_OUT;
-	HALF_GAPS_OUT_INT = GAPS_OUT / 2;
+	HALF_GAPS_OUT_INT = GAPS_OUT_INT / 2;
 	HALF_GAPS_OUT = builtins.toString HALF_GAPS_OUT_INT;
 	BORDER_WIDTH = "2";
 	CORNER_RADIUS = "0";