diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5887924..f57e9f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -200,8 +200,8 @@ if(BUILD_APPS)
   )
 endif()
 
-find_program(BASH_EXECUTABLE bash)
-if(BASH_EXECUTABLE)
+find_program(SH_EXECUTABLE sh)
+if(SH_EXECUTABLE)
   set(BUILD_TESTING ON CACHE BOOL "")
 else()
   message(STATUS "WARNING: bash not available so disabling testing")
diff --git a/cmake/contrib.cmake b/cmake/contrib.cmake
index b121164..55ceb06 100644
--- a/cmake/contrib.cmake
+++ b/cmake/contrib.cmake
@@ -70,7 +70,7 @@ if(BUILD_SHAPELIB_CONTRIB)
     add_test(
       NAME contrib
       COMMAND
-        ${BASH_EXECUTABLE} ${PROJECT_SOURCE_DIR}/contrib/tests/shpproj.sh ${PROJECT_SOURCE_DIR}/contrib/tests/expect.out
+        ${SH_EXECUTABLE} ${PROJECT_SOURCE_DIR}/contrib/tests/shpproj.sh ${PROJECT_SOURCE_DIR}/contrib/tests/expect.out
     )
     declare_test_executable(contrib "dbfadd;dbfcreate;shpadd;shpcreate;shpdump")
   endif()