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-rw-r--r--libnetdata/simple_pattern/simple_pattern.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libnetdata/simple_pattern/simple_pattern.h b/libnetdata/simple_pattern/simple_pattern.h
index 1a8d8f7d66..c81a189f15 100644
--- a/libnetdata/simple_pattern/simple_pattern.h
+++ b/libnetdata/simple_pattern/simple_pattern.h
@@ -48,7 +48,7 @@ int simple_pattern_is_potential_name(SIMPLE_PATTERN *p) ;
char *simple_pattern_iterate(SIMPLE_PATTERN **p);
// Auxiliary function to create a pattern
-char *simple_pattern_trim_around_equal(char *src);
+char *simple_pattern_trim_around_equal(const char *src);
#define SIMPLE_PATTERN_DEFAULT_WEB_SEPARATORS ",|\t\r\n\f\v"