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-rw-r--r--var/spack/repos/builtin/packages/ipopt/package.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/ipopt/package.py b/var/spack/repos/builtin/packages/ipopt/package.py
index 43879c2cad..da8f798908 100644
--- a/var/spack/repos/builtin/packages/ipopt/package.py
+++ b/var/spack/repos/builtin/packages/ipopt/package.py
@@ -78,7 +78,7 @@ class Ipopt(AutotoolsPackage):
lapack_lib = spec['lapack'].libs.ld_flags
args = [
- "--prefix=%s" % prefix,
+ "--prefix=%s" % self.prefix,
"--with-mumps-incdir=%s" % mumps_dir.include,
"--with-mumps-lib=%s" % mumps_libcmd,
"--enable-shared",