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-rw-r--r--src/tool_getparam.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/tool_getparam.h b/src/tool_getparam.h
index 4e97721ed..29e158816 100644
--- a/src/tool_getparam.h
+++ b/src/tool_getparam.h
@@ -47,7 +47,7 @@ typedef enum {
struct GlobalConfig;
struct OperationConfig;
-ParameterError getparameter(char *flag, char *nextarg, bool *usedarg,
+ParameterError getparameter(const char *flag, char *nextarg, bool *usedarg,
struct GlobalConfig *global,
struct OperationConfig *operation);