diff --git a/contrib/src/sidplay2/rules.mak b/contrib/src/sidplay2/rules.mak
index 763ac5ff53..4619406a9b 100644
--- a/contrib/src/sidplay2/rules.mak
+++ b/contrib/src/sidplay2/rules.mak
@@ -38,11 +38,6 @@ sidplay-libs: sidplay-libs-$(SID_VERSION).tar.gz .sum-sidplay2
 
 .sidplay2: sidplay-libs
 	$(REQUIRE_GPL)
-	for d in . libsidplay builders resid builders/resid-builder \
-			builders/hardsid-builder libsidutils ; \
-	do \
-		(cd $</$$d && rm -rf aclocal.m4 Makefile.in configure) || exit $$? ; \
-	done
 	for d in . libsidplay resid builders/resid-builder \
 			builders/hardsid-builder libsidutils ; \
 	do \