diff --git a/BasiliskII/src/Unix/Makefile.in b/BasiliskII/src/Unix/Makefile.in
index b13514b4..66e5ab47 100644
--- a/BasiliskII/src/Unix/Makefile.in
+++ b/BasiliskII/src/Unix/Makefile.in
@@ -161,7 +161,9 @@ installdirs:
 
 uninstall:
 	rm -f $(DESTDIR)$(bindir)/$(APP)$(EXEEXT)
-	rm -f $(DESTDIR)$(bindir)/$(GUI_APP)$(EXEEXT)
+	if test -f "$(GUI_APP_EXE)"; then \
+	  rm -f $(DESTDIR)$(bindir)/$(GUI_APP_EXE); \
+	fi
 	rm -f $(DESTDIR)$(man1dir)/$(APP).1
 	rm -f $(DESTDIR)$(datadir)/$(APP)/keycodes
 	rm -f $(DESTDIR)$(datadir)/$(APP)/fbdevices
diff --git a/SheepShaver/src/Unix/Makefile.in b/SheepShaver/src/Unix/Makefile.in
index 05113f4a..e17ee579 100644
--- a/SheepShaver/src/Unix/Makefile.in
+++ b/SheepShaver/src/Unix/Makefile.in
@@ -168,7 +168,9 @@ installdirs:
 
 uninstall:
 	rm -f $(DESTDIR)$(bindir)/$(APP_EXE)
-	rm -f $(DESTDIR)$(bindir)/$(GUI_APP_EXE)
+	if test -f "$(GUI_APP_EXE)"; then \
+	  rm -f $(DESTDIR)$(bindir)/$(GUI_APP_EXE); \
+	fi
 	rm -f $(DESTDIR)$(man1dir)/$(APP).1
 	rm -f $(DESTDIR)$(datadir)/$(APP)/keycodes
 	rm -f $(DESTDIR)$(datadir)/$(APP)/tunconfig