diff --git a/data/stack.hh b/data/stack.hh
index 992e92ef..1946cc48 100644
--- a/data/stack.hh
+++ b/data/stack.hh
@@ -22,7 +22,9 @@
 b4_percent_define_ifdef([[api.stack.file]],
 [b4_percent_define_check_values([[[[api.stack.file]],
                                   [[none]]]])],
-[b4_defines_if([m4_define([b4_stack_file], [stack.hh])])])
+[b4_defines_if([b4_percent_define_ifdef([[api.location.file]],
+                                        [],
+                                        [m4_define([b4_stack_file], [stack.hh])])])])
 
 
 # b4_stack_define
diff --git a/tests/calc.at b/tests/calc.at
index 3ae8bc4e..5c799c44 100644
--- a/tests/calc.at
+++ b/tests/calc.at
@@ -694,8 +694,8 @@ AT_CHECK_CALC_LALR1_CC([%defines %locations %define parse.error verbose %debug %
 AT_CHECK_CALC_LALR1_CC([%define parse.error verbose %debug %define api.prefix {calc} %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
 AT_CHECK_CALC_LALR1_CC([%defines %locations %define parse.error verbose %debug %define api.prefix {calc} %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
 
-AT_CHECK_CALC_LALR1_CC([%locations %defines %define api.stack.file none %define api.location.file none %define api.position.file none])
-AT_CHECK_CALC_LALR1_CC([%defines %locations %define api.stack.file none %define api.position.file none %define api.location.file "my-location.hh"])
+AT_CHECK_CALC_LALR1_CC([%defines %locations %define api.location.file none])
+AT_CHECK_CALC_LALR1_CC([%defines %locations %define api.location.file "my-location.hh"])
 
 
 # --------------------------- #
diff --git a/tests/output.at b/tests/output.at
index 1684fa04..3ee79df7 100644
--- a/tests/output.at
+++ b/tests/output.at
@@ -195,13 +195,17 @@ AT_CHECK_OUTPUT([foo.yy],
                 [],
                 [foo.tab.cc foo.tab.hh location.hh])
 
-# api.location.file=none => api.position.file=none
+# api.location.file=none => api.position.file=none and api.stack.file=none.
 AT_CHECK_OUTPUT([foo.yy],
-                [%skeleton "lalr1.cc" %defines %define api.stack.file none %locations %define api.location.file none],
+                [%skeleton "lalr1.cc" %defines %locations %define api.location.file none],
                 [],
                 [foo.tab.cc foo.tab.hh])
 
-# api.location.file="*" => api.position.file=none
+# api.location.file="*" => api.position.file=none and api.stack.file=none.
+AT_CHECK_OUTPUT([foo.yy],
+                [%skeleton "lalr1.cc" %defines %locations %define api.location.file "foo.loc.hh"],
+                [],
+                [foo.loc.hh foo.tab.cc foo.tab.hh])
 AT_CHECK_OUTPUT([foo.yy],
                 [%skeleton "lalr1.cc" %defines %define api.stack.file none %locations %define api.location.file "foo.loc.hh"],
                 [],