diff --git a/gc.c b/gc.c
index 49a08f9..2f3275c 100644
--- a/gc.c
+++ b/gc.c
@@ -6166,10 +6166,14 @@ objspace_malloc_fixup(rb_objspace_t *objspace, void *mem, size_t size)
 }
 
 #define TRY_WITH_GC(alloc) do { \
-	if (!(alloc) && \
-	    (!garbage_collect_with_gvl(objspace, 1, 1, GPR_FLAG_MALLOC) || /* full mark && immediate sweep */ \
-	     !(alloc))) { \
-	    ruby_memerror(); \
+	if (!(alloc)) { \
+		if (!garbage_collect_with_gvl(objspace, 1, 1, GPR_FLAG_MALLOC) || /* full mark && immediate sweep */ \
+		    !(alloc)) { \
+		    ruby_memerror(); \
+		} \
+	} \
+	else if (ruby_gc_stress) { \
+		garbage_collect_with_gvl(objspace, 1, 1, GPR_FLAG_MALLOC); \
 	} \
     } while (0)