diff --git a/submodules/build/builders.d/cunit.mk b/submodules/build/builders.d/cunit.mk
index 71734c080..236c878f8 100644
--- a/submodules/build/builders.d/cunit.mk
+++ b/submodules/build/builders.d/cunit.mk
@@ -44,7 +44,7 @@ clean-${cunit_project}:
 	make clean
 
 veryclean-${cunit_project}:
-	if [ -d $(cunit_build_dir) ]; then grep -v $(prefix) $(cunit_build_dir)/install_manifest.txt | xargs echo rm; fi && \
+	if [ -d $(cunit_build_dir) ]; then grep -v $(prefix) $(cunit_build_dir)/install_manifest.txt | xargs rm; fi && \
 	rm -rf $(cunit_build_dir)
 
 clean-makefile-${cunit_project}: veryclean-${cunit_project}
diff --git a/submodules/build/builders.d/polarssl.mk b/submodules/build/builders.d/polarssl.mk
index 73d7c7e63..342929922 100644
--- a/submodules/build/builders.d/polarssl.mk
+++ b/submodules/build/builders.d/polarssl.mk
@@ -44,7 +44,7 @@ clean-${polarssl_project}:
 	make clean
 
 veryclean-${polarssl_project}:
-	if [ -d $(polarssl_build_dir) ]; then grep -v $(prefix) $(polarssl_build_dir)/install_manifest.txt | xargs echo rm; fi && \
+	if [ -d $(polarssl_build_dir) ]; then grep -v $(prefix) $(polarssl_build_dir)/install_manifest.txt | xargs rm; fi && \
 	rm -rf $(polarssl_build_dir)
 
 clean-makefile-${polarssl_project}: veryclean-${polarssl_project}
diff --git a/submodules/build/builders.d/zrtp.mk b/submodules/build/builders.d/zrtp.mk
index b8ea29e94..9ea6a6831 100644
--- a/submodules/build/builders.d/zrtp.mk
+++ b/submodules/build/builders.d/zrtp.mk
@@ -44,7 +44,7 @@ clean-${bzrtp_project}:
 	make clean
 
 veryclean-${bzrtp_project}:
-	if [ -d $(bzrtp_build_dir) ]; then grep -v $(prefix) $(bzrtp_build_dir)/install_manifest.txt | xargs echo rm; fi && \
+	if [ -d $(bzrtp_build_dir) ]; then grep -v $(prefix) $(bzrtp_build_dir)/install_manifest.txt | xargs rm; fi && \
 	rm -rf $(bzrtp_build_dir)
 
 clean-makefile-${bzrtp_project}: veryclean-${bzrtp_project}