diff --git a/Makefile.am b/Makefile.am
index 0695e57..e333428 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -32,6 +32,7 @@ noinst_HEADERS += src/field_gmp_impl.h
 noinst_HEADERS += src/field.h
 noinst_HEADERS += src/field_impl.h
 
+pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libsecp256k1.pc
 
 if USE_ASM
diff --git a/configure.ac b/configure.ac
index 8bed042..0f171d7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,11 +15,6 @@ AC_PROG_INSTALL
 AC_PROG_SED
 PKG_PROG_PKG_CONFIG
 
-AC_ARG_WITH([pkgconfigdir], AS_HELP_STRING([--with-pkgconfigdir=PATH],
-    [Path to the pkgconfig directory [[LIBDIR/pkgconfig]]]),
-    [pkgconfigdir="$withval"], [pkgconfigdir='${libdir}/pkgconfig'])
-AC_SUBST([pkgconfigdir])
-
 AC_PROG_CC_C99
 if test x"$ac_cv_prog_cc_c99" == x"no"; then
   AC_MSG_ERROR([c99 compiler support required])