diff --git a/fuzzers/055-pip-gnd/Makefile b/fuzzers/055-pip-gnd/Makefile
index 0004af4c..44a48e47 100644
--- a/fuzzers/055-pip-gnd/Makefile
+++ b/fuzzers/055-pip-gnd/Makefile
@@ -21,7 +21,7 @@ pushdb:
 
 $(SPECIMENS_OK): build/todo.txt
 	mkdir -p build
-	bash generate.sh $(subst /OK,,$@)
+	+bash generate.sh $(subst /OK,,$@)
 	touch $@
 
 build/todo.txt:
diff --git a/fuzzers/pip_loop.mk b/fuzzers/pip_loop.mk
index b5fc090c..bc4ca248 100644
--- a/fuzzers/pip_loop.mk
+++ b/fuzzers/pip_loop.mk
@@ -30,7 +30,7 @@ include $(SELF_DIR)/pip_list.mk
 
 $(SPECIMENS_OK): build/todo.txt $(SPECIMENS_DEPS)
 	mkdir -p build/$(ITER)
-	if [ -f ${FUZDIR}/generate.sh ] ; then \
+	+if [ -f ${FUZDIR}/generate.sh ] ; then \
 			bash ${FUZDIR}/generate.sh $(subst /OK,,$@) ; \
 		else \
 			bash ${XRAY_DIR}/utils/top_generate.sh $(subst /OK,,$@) ; \