--- a/src/tests/Makefile.am
+++ b/src/tests/Makefile.am
@@ -67,7 +67,7 @@
 
 TESTS=$(BUILT_TESTS) $(TESTSCRIPTS)
 
-TESTS_ENVIRONMENT=RUN_FROM_MAKE=1 AWK=$(AWK) srcdir=$(srcdir) SHELL="$(SHELL)" $(SHELL) $(VERBOSE)
+TESTS_ENVIRONMENT=RUN_FROM_MAKE=1 AWK=$(AWK) srcdir=$(srcdir) SHELL="$(SHELL)" $(VERBOSE)
 
 EXTRA_DIST=$(TESTSCRIPTS) t.frame t.save t.skel \
 	printcore t._abort unsort.pl \
