diff --git a/dix/Makefile.am b/dix/Makefile.am
index e7ca2369c..a4171d7e1 100644
--- a/dix/Makefile.am
+++ b/dix/Makefile.am
@@ -61,13 +61,13 @@ endif
 
 if SPECIAL_DTRACE_OBJECTS
 # Generate dtrace object code for probes in libdix
-dtrace-dix.o: $(top_srcdir)/dix/Xserver.d $(am_libdix_la_OBJECTS)
+dtrace-dix.o: $(top_srcdir)/dix/Xserver.d libdix.la
 	$(AM_V_GEN)$(DTRACE) -G -C -o $@ -s $(top_srcdir)/dix/Xserver.d $(am_libdix_la_OBJECTS:%.lo=.libs/%.o)
 
 noinst_PROGRAMS = dix.O
 
 dix_O_SOURCES =
-dix.O: dtrace-dix.o $(am_libdix_la_OBJECTS)
+dix.O: dtrace-dix.o libdix.la
 	$(AM_V_GEN)ld -r -o $@ $(am_libdix_la_OBJECTS:%.lo=.libs/%.o)
 endif
 
diff --git a/os/Makefile.am b/os/Makefile.am
index b5fb9d0fa..c6e78cb99 100644
--- a/os/Makefile.am
+++ b/os/Makefile.am
@@ -58,12 +58,12 @@ EXTRA_DIST = $(SECURERPC_SRCS) $(XDMCP_SRCS)
 
 if SPECIAL_DTRACE_OBJECTS
 # Generate dtrace object code for probes in libos & libdix
-dtrace.o: $(top_srcdir)/dix/Xserver.d $(am_libos_la_OBJECTS)
+dtrace.o: $(top_srcdir)/dix/Xserver.d libos.la
 	$(AM_V_GEN)$(DTRACE) -G -C -o $@ -s $(top_srcdir)/dix/Xserver.d .libs/*.o ../dix/.libs/*.o
 
 noinst_PROGRAMS = os.O
 
 os_O_SOURCES =
-os.O: dtrace.o $(am_libos_la_OBJECTS)
+os.O: dtrace.o libos.la
 	$(AM_V_GEN)ld -r -o $@ dtrace.o .libs/*.o
 endif