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-rw-r--r--Source/cmGeneratorExpression.cxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/Source/cmGeneratorExpression.cxx b/Source/cmGeneratorExpression.cxx
index 7ea58fa879..3f59129198 100644
--- a/Source/cmGeneratorExpression.cxx
+++ b/Source/cmGeneratorExpression.cxx
@@ -393,7 +393,7 @@ bool cmGeneratorExpression::IsValidTargetName(const std::string &input)
cmsys::RegularExpression targetNameValidator;
// The ':' is supported to allow use with IMPORTED targets. At least
// Qt 4 and 5 IMPORTED targets use ':' as the namespace delimiter.
- targetNameValidator.compile("^[A-Za-z0-9_.:-]+$");
+ targetNameValidator.compile("^[A-Za-z0-9_.:+-]+$");
return targetNameValidator.find(input.c_str());
}