2 files changed, 3 insertions, 1 deletions

diff --git a/THANKS.md b/THANKS.md
index fdc09a3..3159b07 100644
--- a/THANKS.md
+++ b/THANKS.md
@@ -111,3 +111,5 @@ module reorganization, monadic mapVectorM, and many other improvements.
 
 - Clark Gaebel removed superfluous thread safety.
 
+- Jeffrey Burdges reported a glpk link problem on OS/X
+
diff --git a/lib/Numeric/GSL/ODE.hs b/lib/Numeric/GSL/ODE.hs
index 3994210..ab037bd 100644
--- a/lib/Numeric/GSL/ODE.hs
+++ b/lib/Numeric/GSL/ODE.hs
@@ -19,7 +19,7 @@ import Graphics.Plot
 
 xdot t [x,v] = [v, -0.95*x - 0.1*v]
 
-ts = linspace 100 (0,20)
+ts = linspace 100 (0,20 :: Double)
 
 sol = odeSolve xdot [10,0] ts