diff --git a/configure.ac b/configure.ac
index fb1b518e9..357b6d7f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -434,6 +434,9 @@ AC_CHECK_HEADERS([netinet/ip.h], [], [],
 AC_CHECK_HEADERS([sys/resource.h], [HAVE_SYS_RESOURCE_H=1], [HAVE_SYS_RESOURCE_H=0])
 AC_SUBST(HAVE_SYS_RESOURCE_H)
 AC_CHECK_HEADERS([sys/un.h], [HAVE_AF_UNIX=1], [HAVE_AF_UNIX=0])
+# In principle we would test for <afunix.h>, but that doesn't ship (yet) with the
+# MinGW headers.
+AC_CHECK_HEADERS([winsock2.h], [HAVE_AF_UNIX=1], [])
 AM_CONDITIONAL(HAVE_AF_UNIX, test "x$HAVE_AF_UNIX" = "x1")
 AC_SUBST(HAVE_AF_UNIX)
 
diff --git a/src/Makefile.am b/src/Makefile.am
index eeec40b55..97c9dce9f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -206,8 +206,11 @@ bin_PROGRAMS += pasuspender
 endif
 
 if HAVE_AF_UNIX
+if !OS_IS_WIN32
+# pacmd relies on Unix signals, which are not present on Windows.
 bin_PROGRAMS += pacmd
 endif
+endif
 
 if HAVE_X11
 bin_PROGRAMS += pax11publish