diff --git a/distrib/FMIT_MSVC2012_Win32bit.iss b/distrib/FMIT_MSVC2012_Win32bit.iss
index de04a2e..3d6e37d 100644
--- a/distrib/FMIT_MSVC2012_Win32bit.iss
+++ b/distrib/FMIT_MSVC2012_Win32bit.iss
@@ -130,6 +130,6 @@ begin
   // this statement, the following won't install your VC redist only when
   // the Visual C++ 2010 Redist (x86) and Visual C++ 2010 SP1 Redist(x86)
   // are installed for the current user
-  Result := not (VCVersionInstalled(VC_2013_REDIST_X86_MIN) or
-    VCVersionInstalled(VC_2013_REDIST_X86_ADD));
+  Result := not (VCVersionInstalled(VC_2015_REDIST_X86_MIN) or
+    VCVersionInstalled(VC_2015_REDIST_X86_ADD));
 end;
diff --git a/distrib/FMIT_MSVC2012_Win64bit.iss b/distrib/FMIT_MSVC2012_Win64bit.iss
index 789a6c5..0a7faf9 100644
--- a/distrib/FMIT_MSVC2012_Win64bit.iss
+++ b/distrib/FMIT_MSVC2012_Win64bit.iss
@@ -130,6 +130,6 @@ begin
   // this statement, the following won't install your VC redist only when
   // the Visual C++ 2010 Redist (x86) and Visual C++ 2010 SP1 Redist(x86)
   // are installed for the current user
-  Result := not (VCVersionInstalled(VC_2013_REDIST_X64_MIN) or
-    VCVersionInstalled(VC_2013_REDIST_X64_ADD));
+  Result := not (VCVersionInstalled(VC_2015_REDIST_X64_MIN) or
+    VCVersionInstalled(VC_2015_REDIST_X64_ADD));
 end;