X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2FInsetMathMacro.cpp;h=d2c35c7e5bea913e1d857fc319871945de87d0db;hb=d9082639080b9de993742bd352f92e5183058cf5;hp=a21460091fda3e6cbe0f2a9d0000c3b7cff82d5d;hpb=649755f48180b0466cdf212178dc9bdcc5d18210;p=lyx.git

diff --git a/src/mathed/InsetMathMacro.cpp b/src/mathed/InsetMathMacro.cpp
index a21460091f..d2c35c7e5b 100644
--- a/src/mathed/InsetMathMacro.cpp
+++ b/src/mathed/InsetMathMacro.cpp
@@ -1214,8 +1214,11 @@ void InsetMathMacro::write(TeXMathStream & os) const
 	}
 
 	// add space if there was no argument
-	if (first)
+	// or add braces if we have optionals but none are present and [ follows
+	if (first) {
 		os.pendingSpace(true);
+		os.useBraces(d->optionals_ > 0);
+	}
 
 	// write \(no)limits modifiers if relevant
 	writeLimits(os);