1 files changed, 1 insertions, 1 deletions
diff --git a/src/FIRFilter.h b/src/FIRFilter.h
index 7f34fd8..0c06930 100644
--- a/src/FIRFilter.h
+++ b/src/FIRFilter.h
@@ -136,7 +136,7 @@ class FIRFilterWorker {
 class FIRFilter : public ModCodec
 {
 public:
-    FIRFilter(char* taps_file);
+    FIRFilter(const char* taps_file);
     virtual ~FIRFilter();
     FIRFilter(const FIRFilter&);
     FIRFilter& operator=(const FIRFilter&);