diff --git a/gcc/d/dmd/MERGE b/gcc/d/dmd/MERGE
index 99499252279..e100264fed8 100644
--- a/gcc/d/dmd/MERGE
+++ b/gcc/d/dmd/MERGE
@@ -1,4 +1,4 @@
-bbc5ea66ab41ebd14abd9a0fbb9ca6ef6b2dcb14
+78dc311524341a76008b341ff6427e5a16e285db
 
 The first line of this file holds the git revision number of the last
 merge done from the dlang/dmd repository.
diff --git a/gcc/d/dmd/dmodule.c b/gcc/d/dmd/dmodule.c
index 1f6fd9f10a6..bf1c0c1f0d9 100644
--- a/gcc/d/dmd/dmodule.c
+++ b/gcc/d/dmd/dmodule.c
@@ -679,7 +679,8 @@ void Module::importAll(Scope *)
     // If it isn't there, some compiler rewrites, like
     //    classinst == classinst -> .object.opEquals(classinst, classinst)
     // would fail inside object.d.
-    if (members->dim == 0 || ((*members)[0])->ident != Id::object)
+    if (members->dim == 0 || ((*members)[0])->ident != Id::object ||
+        (*members)[0]->isImport() == NULL)
     {
         Import *im = new Import(Loc(), NULL, Id::object, NULL, 0);
         members->shift(im);
diff --git a/gcc/testsuite/gdc.test/compilable/test19912.d b/gcc/testsuite/gdc.test/compilable/test19912.d
new file mode 100644
index 00000000000..7a6bc9eb063
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test19912.d
@@ -0,0 +1,3 @@
+// PERMUTE_ARGS:
+import object;
+void fun(string) { }
diff --git a/gcc/testsuite/gdc.test/fail_compilation/fail19912a.d b/gcc/testsuite/gdc.test/fail_compilation/fail19912a.d
new file mode 100644
index 00000000000..47d3cf2e5bc
--- /dev/null
+++ b/gcc/testsuite/gdc.test/fail_compilation/fail19912a.d
@@ -0,0 +1,9 @@
+// PERMUTE_ARGS:
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fail19912a.d(8): Error: struct `fail19912a.object` conflicts with import `fail19912a.object` at fail_compilation/fail19912a.d
+---
+*/
+struct object { }
+void fun(string) { }
diff --git a/gcc/testsuite/gdc.test/fail_compilation/fail19912b.d b/gcc/testsuite/gdc.test/fail_compilation/fail19912b.d
new file mode 100644
index 00000000000..b3bd56dde46
--- /dev/null
+++ b/gcc/testsuite/gdc.test/fail_compilation/fail19912b.d
@@ -0,0 +1,9 @@
+// PERMUTE_ARGS:
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fail19912b.d(8): Error: class `fail19912b.object` conflicts with import `fail19912b.object` at fail_compilation/fail19912b.d
+---
+*/
+class object { }
+void fun(string) { }
diff --git a/gcc/testsuite/gdc.test/fail_compilation/fail19912c.d b/gcc/testsuite/gdc.test/fail_compilation/fail19912c.d
new file mode 100644
index 00000000000..a4656cc856b
--- /dev/null
+++ b/gcc/testsuite/gdc.test/fail_compilation/fail19912c.d
@@ -0,0 +1,9 @@
+// PERMUTE_ARGS:
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fail19912c.d(8): Error: alias `fail19912c.object` conflicts with import `fail19912c.object` at fail_compilation/fail19912c.d
+---
+*/
+alias object = int;
+void fun(string) { }
diff --git a/gcc/testsuite/gdc.test/fail_compilation/fail19912d.d b/gcc/testsuite/gdc.test/fail_compilation/fail19912d.d
new file mode 100644
index 00000000000..fdc8dcb9244
--- /dev/null
+++ b/gcc/testsuite/gdc.test/fail_compilation/fail19912d.d
@@ -0,0 +1,9 @@
+// PERMUTE_ARGS:
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fail19912d.d(8): Error: enum `fail19912d.object` conflicts with import `fail19912d.object` at fail_compilation/fail19912d.d
+---
+*/
+enum object { }
+void fun(string) { }
diff --git a/gcc/testsuite/gdc.test/fail_compilation/fail19912e.d b/gcc/testsuite/gdc.test/fail_compilation/fail19912e.d
new file mode 100644
index 00000000000..19cc9a619d1
--- /dev/null
+++ b/gcc/testsuite/gdc.test/fail_compilation/fail19912e.d
@@ -0,0 +1,9 @@
+// PERMUTE_ARGS:
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fail19912e.d(8): Error: function `fail19912e.object` conflicts with import `fail19912e.object` at fail_compilation/fail19912e.d
+---
+*/
+void object() { }
+void fun(string) { }