diff --git a/ghc-scientific.spec b/ghc-scientific.spec
index e3c1bd3..f62965f 100644
--- a/ghc-scientific.spec
+++ b/ghc-scientific.spec
@@ -5,6 +5,7 @@
 %global pkgver %{pkg_name}-%{version}
 
 %global integerlogarithms integer-logarithms-1.0.1
+%global subpkgs %{integerlogarithms}
 
 %bcond_with tests
 
@@ -78,12 +79,12 @@ This package provides the Haskell %{pkg_name} library development files.
 
 
 %build
-%ghc_libs_build %{integerlogarithms}
+%ghc_libs_build %{subpkgs}
 %ghc_lib_build
 
 
 %install
-%ghc_libs_install %{integerlogarithms}
+%ghc_libs_install %{subpkgs}
 %ghc_lib_install