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-rw-r--r--src/StringUtils.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/StringUtils.h b/src/StringUtils.h
index a7f22b100..728ce31e6 100644
--- a/src/StringUtils.h
+++ b/src/StringUtils.h
@@ -31,7 +31,7 @@ extern AString & Printf (AString & str, const char * format, ...) FORMATST
extern AString Printf(const char * format, ...) FORMATSTRING(1,2);
/// Add the formatted string to the existing data in the string
-extern AString & AppendPrintf (AString & str, const char * format, ...);
+extern AString & AppendPrintf (AString & str, const char * format, ...) FORMATSTRING(2,3);
/// Split the string at any of the listed delimiters, return as a stringvector
extern AStringVector StringSplit(const AString & str, const AString & delim);