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-rw-r--r--src/cmd/acidtypes/type.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cmd/acidtypes/type.c b/src/cmd/acidtypes/type.c
index 4afd3e54..5757a327 100644
--- a/src/cmd/acidtypes/type.c
+++ b/src/cmd/acidtypes/type.c
@@ -373,7 +373,7 @@ nameof(Type *t, int doanon)
else
return "";
for(p=buf; *p; p++)
- if(isspace(*p))
+ if(isspace((uchar)*p))
*p = '_';
return buf;
}