diff --git a/nix.spec.in b/nix.spec.in
index 7d7775b8..4dbfdfa0 100644
--- a/nix.spec.in
+++ b/nix.spec.in
@@ -181,6 +181,7 @@ systemctl start  nix-daemon.socket
 
 %files devel
 %{_includedir}/nix
+%{_prefix}/lib/pkgconfig/*.pc
 
 %files doc
 %docdir %{_defaultdocdir}/%{name}-doc-%{version}
diff --git a/src/libexpr/local.mk b/src/libexpr/local.mk
index 6bb15116..4c1f4de1 100644
--- a/src/libexpr/local.mk
+++ b/src/libexpr/local.mk
@@ -27,4 +27,4 @@ clean-files += $(d)/parser-tab.cc $(d)/parser-tab.hh $(d)/lexer-tab.cc $(d)/lexe
 
 dist-files += $(d)/parser-tab.cc $(d)/parser-tab.hh $(d)/lexer-tab.cc $(d)/lexer-tab.hh
 
-$(eval $(call install-file-in, $(d)/nix-expr.pc, $(libdir)/pkgconfig, 0644))
+$(eval $(call install-file-in, $(d)/nix-expr.pc, $(prefix)/lib/pkgconfig, 0644))
diff --git a/src/libmain/local.mk b/src/libmain/local.mk
index 4b6a4767..16dbf752 100644
--- a/src/libmain/local.mk
+++ b/src/libmain/local.mk
@@ -10,4 +10,4 @@ libmain_LIBS = libstore libutil libformat
 
 libmain_ALLOW_UNDEFINED = 1
 
-$(eval $(call install-file-in, $(d)/nix-main.pc, $(libdir)/pkgconfig, 0644))
+$(eval $(call install-file-in, $(d)/nix-main.pc, $(prefix)/lib/pkgconfig, 0644))
diff --git a/src/libstore/local.mk b/src/libstore/local.mk
index 024d7dec..7c99fd77 100644
--- a/src/libstore/local.mk
+++ b/src/libstore/local.mk
@@ -31,4 +31,4 @@ $(d)/local-store.cc: $(d)/schema.sql.hh
 
 clean-files += $(d)/schema.sql.hh
 
-$(eval $(call install-file-in, $(d)/nix-store.pc, $(libdir)/pkgconfig, 0644))
+$(eval $(call install-file-in, $(d)/nix-store.pc, $(prefix)/lib/pkgconfig, 0644))