Index: src/config.h.in
--- src/config.h.in.orig
+++ src/config.h.in
@@ -11,6 +11,6 @@
 #cmakedefine UMURMUR_VERSION "@UMURMUR_VERSION@"
 #define SSLIMP_VERSION "@SSLIMP_VERSION@"
 
-#define DEFAULT_CONFIG "${CMAKE_INSTALL_FULL_SYSCONFDIR}/umurmur/umurmur.conf"
+#define DEFAULT_CONFIG "${SYSCONFDIR}/umurmur/umurmur.conf"
 
 #endif // CONFIG_H
