diff --git a/src/splash-plugins/details/Makefile.am b/src/splash-plugins/details/Makefile.am
index b395c980..0550db02 100644
--- a/src/splash-plugins/details/Makefile.am
+++ b/src/splash-plugins/details/Makefile.am
@@ -11,6 +11,8 @@ details_la_CFLAGS = $(PLYMOUTH_CFLAGS)
 details_la_LDFLAGS = -module -avoid-version -export-dynamic
 details_la_LIBADD = $(PLYMOUTH_LIBS) ../../libply/libply.la
 details_la_SOURCES = $(srcdir)/../../ply-boot-splash-plugin.h         \
+                     $(srcdir)/../../ply-window.h                     \
+                     $(srcdir)/../../ply-window.c                     \
                      $(srcdir)/plugin.c
 
 MAINTAINERCLEANFILES = Makefile.in
diff --git a/src/splash-plugins/text/Makefile.am b/src/splash-plugins/text/Makefile.am
index 9daad9e7..27b2cf70 100644
--- a/src/splash-plugins/text/Makefile.am
+++ b/src/splash-plugins/text/Makefile.am
@@ -11,6 +11,8 @@ text_la_CFLAGS = $(PLYMOUTH_CFLAGS)
 text_la_LDFLAGS = -module -avoid-version -export-dynamic
 text_la_LIBADD = $(PLYMOUTH_LIBS) ../../libply/libply.la
 text_la_SOURCES = $(srcdir)/../../ply-boot-splash-plugin.h         \
+                  $(srcdir)/../../ply-window.h                     \
+                  $(srcdir)/../../ply-window.c                     \
                   $(srcdir)/plugin.c
 
 MAINTAINERCLEANFILES = Makefile.in