diff --git a/dmd2/cond.c b/dmd2/cond.c
index e65a6215e5..21fd75935b 100644
--- a/dmd2/cond.c
+++ b/dmd2/cond.c
@@ -205,6 +205,9 @@ bool VersionCondition::isPredefined(const char *ident)
         "SPARC64",
         "S390",
         "S390X",
+#if IN_LLVM
+        "SystemZ",
+#endif
         "HPPA",
         "HPPA64",
         "SH",
diff --git a/driver/main.cpp b/driver/main.cpp
index 09cfa60738..445c79301b 100644
--- a/driver/main.cpp
+++ b/driver/main.cpp
@@ -671,6 +671,13 @@ static void registerPredefinedTargetVersions() {
             VersionCondition::addPredefinedGlobalIdent("NVPTX64");
             VersionCondition::addPredefinedGlobalIdent("D_HardFloat");
             break;
+#endif
+#if LDC_LLVM_VER >= 303
+        case llvm::Triple::systemz:
+            VersionCondition::addPredefinedGlobalIdent("SystemZ");
+            VersionCondition::addPredefinedGlobalIdent("S390X"); // For backwards compatibility.
+            VersionCondition::addPredefinedGlobalIdent("D_HardFloat");
+            break;
 #endif
         default:
             error(Loc(), "invalid cpu architecture specified: %s", global.params.targetTriple.getArchName().str().c_str());