diff --git a/libmu_sieve/extensions/Makefile.am b/libmu_sieve/extensions/Makefile.am
--- a/libmu_sieve/extensions/Makefile.am
+++ b/libmu_sieve/extensions/Makefile.am
@@ -25,7 +25,7 @@ mod_LTLIBRARIES =\
  vacation.la
 AM_CPPFLAGS = $(MU_APP_COMMON_INCLUDES)
 AM_LDFLAGS = -module -avoid-version -no-undefined -rpath '$(moddir)'
-LIBS = ../libmu_sieve.la
+LIBS = ../libmu_sieve.la $(MU_LIB_MAILUTILS)
 
 if MU_COND_DBM
   mod_LTLIBRARIES += uidnew.la
diff --git a/examples/Makefile.am b/examples/Makefile.am
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -60,7 +60,7 @@ LDADD = \
  $(MU_COMMON_LIBRARIES)
 
 numaddr_la_SOURCES = numaddr.c
-numaddr_la_LIBADD = $(MU_LIB_SIEVE)
+numaddr_la_LIBADD = $(MU_LIB_SIEVE) $(MU_LIB_MAILUTILS)
 numaddr_la_LDFLAGS = -module -avoid-version -no-undefined -rpath '$(moddir)'
 
 msg_send_LDADD =\