diff --git a/llvm/tools/llvm-pdbutil/MinimalSymbolDumper.cpp b/llvm/tools/llvm-pdbutil/MinimalSymbolDumper.cpp
index f284b87128640..e6b5d21f36e5f 100644
--- a/llvm/tools/llvm-pdbutil/MinimalSymbolDumper.cpp
+++ b/llvm/tools/llvm-pdbutil/MinimalSymbolDumper.cpp
@@ -586,8 +586,7 @@ Error MinimalSymbolDumper::visitKnownRecord(CVSymbol &CVR,
   AutoIndent Indent(P, 7);
   P.formatLine("offset = {0}, range = {1}", Def.Hdr.Offset,
                formatRange(Def.Range));
-  P.formatLine("gaps = {2}", Def.Hdr.Offset,
-               formatGaps(P.getIndentLevel() + 9, Def.Gaps));
+  P.formatLine("gaps = [{0}]", formatGaps(P.getIndentLevel() + 9, Def.Gaps));
   return Error::success();
 }
 
@@ -599,7 +598,7 @@ Error MinimalSymbolDumper::visitKnownRecord(CVSymbol &CVR,
                formatRegisterId(Def.Hdr.Register, CompilationCPU),
                int32_t(Def.Hdr.BasePointerOffset), Def.offsetInParent(),
                Def.hasSpilledUDTMember());
-  P.formatLine("range = {0}, gaps = {1}", formatRange(Def.Range),
+  P.formatLine("range = {0}, gaps = [{1}]", formatRange(Def.Range),
                formatGaps(P.getIndentLevel() + 9, Def.Gaps));
   return Error::success();
 }
@@ -626,7 +625,7 @@ Error MinimalSymbolDumper::visitKnownRecord(CVSymbol &CVR,
   P.formatLine("register = {0}, may have no name = {1}, offset in parent = {2}",
                formatRegisterId(Def.Hdr.Register, CompilationCPU), NoName,
                uint32_t(Def.Hdr.OffsetInParent));
-  P.formatLine("range = {0}, gaps = {1}", formatRange(Def.Range),
+  P.formatLine("range = {0}, gaps = [{1}]", formatRange(Def.Range),
                formatGaps(P.getIndentLevel() + 9, Def.Gaps));
   return Error::success();
 }
@@ -636,7 +635,7 @@ Error MinimalSymbolDumper::visitKnownRecord(CVSymbol &CVR,
   AutoIndent Indent(P, 7);
   P.formatLine("program = {0}, offset in parent = {1}, range = {2}",
                Def.Program, Def.OffsetInParent, formatRange(Def.Range));
-  P.formatLine("gaps = {0}", formatGaps(P.getIndentLevel() + 9, Def.Gaps));
+  P.formatLine("gaps = [{0}]", formatGaps(P.getIndentLevel() + 9, Def.Gaps));
   return Error::success();
 }
 
@@ -644,7 +643,7 @@ Error MinimalSymbolDumper::visitKnownRecord(CVSymbol &CVR, DefRangeSym &Def) {
   AutoIndent Indent(P, 7);
   P.formatLine("program = {0}, range = {1}", Def.Program,
                formatRange(Def.Range));
-  P.formatLine("gaps = {0}", formatGaps(P.getIndentLevel() + 9, Def.Gaps));
+  P.formatLine("gaps = [{0}]", formatGaps(P.getIndentLevel() + 9, Def.Gaps));
   return Error::success();
 }