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-rw-r--r--src/passes/StringLowering.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/passes/StringLowering.cpp b/src/passes/StringLowering.cpp
index dd7428546..5b5a5b551 100644
--- a/src/passes/StringLowering.cpp
+++ b/src/passes/StringLowering.cpp
@@ -126,7 +126,8 @@ struct StringGathering : public Pass {
// Find globals to reuse (see comment on stringPtrsToPreserve for context).
for (auto& global : module->globals) {
- if (global->type == nnstringref && !global->imported()) {
+ if (global->type == nnstringref && !global->imported() &&
+ !global->mutable_) {
if (auto* stringConst = global->init->dynCast<StringConst>()) {
auto& globalName = stringToGlobalName[stringConst->string];
if (!globalName.is()) {