diff --git a/tests/mextram/bjt504t/run_all_tests_bjt504t b/tests/mextram/bjt504t/run_all_tests_bjt504t
index 9d51e2449..c473941f8 100755
--- a/tests/mextram/bjt504t/run_all_tests_bjt504t
+++ b/tests/mextram/bjt504t/run_all_tests_bjt504t
@@ -1,4 +1,4 @@
-#!/bin/csh
+#!/bin/sh
 echo "\n========================="
 echo "\nRUN ALL TESTS FOR bjt504t\n"
 ../scripts/run_all_tests_mult_1p0 $1
diff --git a/tests/mextram/scripts/run_all_tests_mult_1p0 b/tests/mextram/scripts/run_all_tests_mult_1p0
index d56af0664..ceb0ad62c 100755
--- a/tests/mextram/scripts/run_all_tests_mult_1p0
+++ b/tests/mextram/scripts/run_all_tests_mult_1p0
@@ -1,4 +1,4 @@
-#!/bin/csh
+#!/bin/sh
 echo "\n---------------------------"
 echo "run all tests with mult=1.0\n"
 rm ../test_specs/set_mult.inc
diff --git a/tests/mextram/scripts/run_all_tests_mult_1p5 b/tests/mextram/scripts/run_all_tests_mult_1p5
index a6bd82c3c..8d651b160 100755
--- a/tests/mextram/scripts/run_all_tests_mult_1p5
+++ b/tests/mextram/scripts/run_all_tests_mult_1p5
@@ -1,4 +1,4 @@
-#!/bin/csh
+#!/bin/sh
 echo "\n---------------------------"
 echo "run all tests with mult=1.5\n"
 rm ../test_specs/set_mult.inc