diff --git a/src/arkode/arkode.c b/src/arkode/arkode.c
index 95675b448e..85b41a03c7 100644
--- a/src/arkode/arkode.c
+++ b/src/arkode/arkode.c
@@ -611,7 +611,7 @@ int ARKodeResStolerance(void* arkode_mem, sunrealtype rabstol)
   /* Guard against use for time steppers that do not support mass matrices */
   if (!ark_mem->step_supports_massmatrix)
   {
-    arkProcessError(NULL, ARK_ILL_INPUT, __LINE__, __func__,
+    arkProcessError(ark_mem, ARK_ILL_INPUT, __LINE__, __func__,
                     __FILE__, "time-stepping module does not support non-identity mass matrices");
     return (ARK_ILL_INPUT);
   }
@@ -676,7 +676,7 @@ int ARKodeResVtolerance(void* arkode_mem, N_Vector rabstol)
   /* Guard against use for time steppers that do not support mass matrices */
   if (!ark_mem->step_supports_massmatrix)
   {
-    arkProcessError(NULL, ARK_ILL_INPUT, __LINE__, __func__,
+    arkProcessError(ark_mem, ARK_ILL_INPUT, __LINE__, __func__,
                     __FILE__, "time-stepping module does not support non-identity mass matrices");
     return (ARK_ILL_INPUT);
   }
@@ -761,7 +761,7 @@ int ARKodeResFtolerance(void* arkode_mem, ARKRwtFn rfun)
   /* Guard against use for time steppers that do not support mass matrices */
   if (!ark_mem->step_supports_massmatrix)
   {
-    arkProcessError(NULL, ARK_ILL_INPUT, __LINE__, __func__,
+    arkProcessError(ark_mem, ARK_ILL_INPUT, __LINE__, __func__,
                     __FILE__, "time-stepping module does not support non-identity mass matrices");
     return (ARK_ILL_INPUT);
   }