diff --git a/csound-expression-dynamic.cabal b/csound-expression-dynamic.cabal
--- a/csound-expression-dynamic.cabal
+++ b/csound-expression-dynamic.cabal
@@ -1,5 +1,5 @@
 Name:          csound-expression-dynamic
-Version:       0.1.3
+Version:       0.1.4
 Cabal-Version: >= 1.6
 License:       BSD3
 License-file:  LICENSE
diff --git a/src/Csound/Dynamic/Build/Numeric.hs b/src/Csound/Dynamic/Build/Numeric.hs
--- a/src/Csound/Dynamic/Build/Numeric.hs
+++ b/src/Csound/Dynamic/Build/Numeric.hs
@@ -54,7 +54,7 @@
     exp = unOpt exp (opr1 "exp")
     sqrt = unOpt sqrt (opr1 "sqrt")
     log = unOpt log (opr1 "log")
-    logBase a n = case n of
+    logBase n a = case n of
         2 -> unOpt (flip logBase 2) (opr1 "logbtwo") a
         10 -> unOpt (flip logBase 10) (opr1 "log10") a
         b -> log a / log b