diff --git a/Makefile.am b/Makefile.am
index f16896c..f8c6028 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -159,10 +159,10 @@ uninstall-local:
 
 # Extra things
 nodist_pkgconfig_DATA = \
-	libisofs-5.pc
+	libisofs-1.pc
 
 EXTRA_DIST = \
-	libisofs-5.pc.in \
+	libisofs-1.pc.in \
 	version.h.in \
 	doc/doxygen.conf.in \
 	doc/Tutorial \
diff --git a/libisofs-5.pc.in b/libisofs-1.pc.in
similarity index 100%
rename from libisofs-5.pc.in
rename to libisofs-1.pc.in