diff --git a/rtl/watcom/Makefile b/rtl/watcom/Makefile
index f96736ea8f..36d7336577 100644
--- a/rtl/watcom/Makefile
+++ b/rtl/watcom/Makefile
@@ -2313,6 +2313,7 @@ SYSCPUDEPS=$(addprefix $(PROCINC)/,$(CPUINCNAMES))
 SYSDEPS=$(SYSINCDEPS) $(SYSCPUDEPS)
 prt0$(OEXT) : prt0.as
 	wasm prt0.as -bt=dos -5s -fp5 -ms -zq
+	$(COPY) prt0$(OEXT) $(UNITTARGETDIRPREFIX)prt0$(OEXT)
 system$(PPUEXT) : system.pp $(SYSDEPS)
 	$(COMPILER) -Us -Sg system.pp
 objpas$(PPUEXT): $(OBJPASDIR)/objpas.pp $(INC)/except.inc system$(PPUEXT)
diff --git a/rtl/watcom/Makefile.fpc b/rtl/watcom/Makefile.fpc
index 15a8c3e6a9..82ae152f19 100644
--- a/rtl/watcom/Makefile.fpc
+++ b/rtl/watcom/Makefile.fpc
@@ -88,6 +88,7 @@ SYSDEPS=$(SYSINCDEPS) $(SYSCPUDEPS)
 
 prt0$(OEXT) : prt0.as
         wasm prt0.as -bt=dos -5s -fp5 -ms -zq
+        $(COPY) prt0$(OEXT) $(UNITTARGETDIRPREFIX)prt0$(OEXT)
 
 #
 # System Units (System, Objpas, Strings)