diff --git a/config/cmake_ext_mod/HDFTests.c b/config/cmake_ext_mod/HDFTests.c
index 31a568aef5..bed9444d1e 100644
--- a/config/cmake_ext_mod/HDFTests.c
+++ b/config/cmake_ext_mod/HDFTests.c
@@ -178,7 +178,7 @@ int DebugReport(int reportType, char* message, int* returnValue)
 
 int main(void)
 {
-  char *llwidthArgs[] = { "I64", "l64", "l", "L", "q", "ll", NULL };
+  char *llwidthArgs[] = { "I64", "l64", "ll", "l", "L", "q", NULL };
   char *s = malloc(128);
   char **currentArg = NULL;
   LL_TYPE x = (LL_TYPE)1048576 * (LL_TYPE)1048576;