diff --git a/lld/COFF/DriverUtils.cpp b/lld/COFF/DriverUtils.cpp
--- a/lld/COFF/DriverUtils.cpp
+++ b/lld/COFF/DriverUtils.cpp
@@ -88,10 +88,10 @@
 void parseVersion(StringRef arg, uint32_t *major, uint32_t *minor) {
   StringRef s1, s2;
   std::tie(s1, s2) = arg.split('.');
-  if (s1.getAsInteger(0, *major))
+  if (s1.getAsInteger(10, *major))
     fatal("invalid number: " + s1);
   *minor = 0;
-  if (!s2.empty() && s2.getAsInteger(0, *minor))
+  if (!s2.empty() && s2.getAsInteger(10, *minor))
     fatal("invalid number: " + s2);
 }
 
diff --git a/lld/test/COFF/subsystem.test b/lld/test/COFF/subsystem.test
--- a/lld/test/COFF/subsystem.test
+++ b/lld/test/COFF/subsystem.test
@@ -12,6 +12,10 @@
 # RUN:   %p/Inputs/ret42.obj
 # RUN: llvm-readobj --file-headers %t.exe | FileCheck -check-prefix=CHECK2 %s
 
+# RUN: lld-link /entry:main /out:%t.exe /subsystem:windows,8.09 \
+# RUN:   %p/Inputs/ret42.obj
+# RUN: llvm-readobj --file-headers %t.exe | FileCheck -check-prefix=CHECK2 %s
+
 CHECK2: MajorOperatingSystemVersion: 8
 CHECK2: MinorOperatingSystemVersion: 9
 CHECK2: MajorSubsystemVersion: 8
diff --git a/lld/test/COFF/version.test b/lld/test/COFF/version.test
--- a/lld/test/COFF/version.test
+++ b/lld/test/COFF/version.test
@@ -17,3 +17,9 @@
 
 CHECK2: MajorImageVersion: 11
 CHECK2: MinorImageVersion: 22
+
+# RUN: lld-link /out:%t.exe /entry:main %t.obj /version:8.09
+# RUN: llvm-readobj --file-headers %t.exe | FileCheck -check-prefix=CHECK3 %s
+
+CHECK3: MajorImageVersion: 8
+CHECK3: MinorImageVersion: 9