1 files changed, 2 insertions, 1 deletions

diff --git a/packages/glpk/src/Numeric/LinearProgramming.hs b/packages/glpk/src/Numeric/LinearProgramming.hs
index 5de8577..b0537cc 100644
--- a/packages/glpk/src/Numeric/LinearProgramming.hs
+++ b/packages/glpk/src/Numeric/LinearProgramming.hs
@@ -17,7 +17,8 @@ maximize 4 x_1 - 3 x_2 + 2 x_3
 subject to
 
 2 x_1 +   x_2 <= 10
-  x_3 + 5 x_4 <= 20
+
+  x_2 + 5 x_3 <= 20
 
 and