diff --git a/src/tools/msvc/MSBuildProject.pm b/src/tools/msvc/MSBuildProject.pm
index 823357c02..b93992f22 100644
--- a/src/tools/msvc/MSBuildProject.pm
+++ b/src/tools/msvc/MSBuildProject.pm
@@ -381,7 +381,7 @@ EOF
 		print $f <<EOF;
     <PreLinkEvent>
       <Message>Generate DEF file</Message>
-      <Command>perl src\\tools\\msvc\\gendef.pl $cfgname\\$self->{name} $self->{platform}</Command>
+      <Command>perl "src\\tools\\msvc\\gendef.pl" $cfgname\\$self->{name} $self->{platform}</Command>
     </PreLinkEvent>
 EOF
 	}