--- plugins/sid/sidplay-libs/libsidplay/src/xsid/xsid.cpp.orig
+++ plugins/sid/sidplay-libs/libsidplay/src/xsid/xsid.cpp
@@ -94,7 +94,7 @@
     '\x08', '\x19', '\x2a', '\x3b', '\x4c', '\x5d', '\x6e', '\x7f'
 };
 */
-const int8_t XSID::sampleConvertTable[16] =
+const char XSID::sampleConvertTable[16] =
 {
     '\x80', '\x94', '\xa9', '\xbc', '\xce', '\xe1', '\xf2', '\x03',
     '\x1b', '\x2a', '\x3b', '\x49', '\x58', '\x66', '\x73', '\x7f'
--- plugins/sid/sidplay-libs/libsidplay/src/xsid/xsid.h.orig
+++ plugins/sid/sidplay-libs/libsidplay/src/xsid/xsid.h
@@ -238,7 +238,7 @@
     uint8_t             sidData0x18;
     bool                _sidSamples;
     int8_t              sampleOffset;
-    static const int8_t sampleConvertTable[16];
+    static const char sampleConvertTable[16];
     bool                wasRunning;
 
 private: