diff --git a/generic-pc/playback.h b/generic-pc/playback.h
index 9599afc..ff66d35 100644
--- a/generic-pc/playback.h
+++ b/generic-pc/playback.h
@@ -44,7 +44,7 @@ class cPlayback
 		void FindAllDvbsubtitlePids(int *pids, unsigned int *numpidd, std::string *language);
 		void FindAllTeletextsubtitlePids(int *pids, unsigned int *numpidt, std::string *tlanguage);
 		void RequestAbort(void);
-		bool isPlaying(void) { return false; }
+		bool IsPlaying(void) { return false; }
 		void FindAllSubs(int *pids, unsigned int *supported, unsigned int *numpida, std::string *language);
 		bool SelectSubtitles(int pid);
 		void GetChapters(std::vector<int> &positions, std::vector<std::string> &titles);
diff --git a/libspark/playback_libeplayer3.cpp b/libspark/playback_libeplayer3.cpp
index 90ba7fc..1b2b318 100644
--- a/libspark/playback_libeplayer3.cpp
+++ b/libspark/playback_libeplayer3.cpp
@@ -757,7 +757,7 @@ void cPlayback::RequestAbort() {
 	}
 }
 
-bool cPlayback::isPlaying() {
+bool cPlayback::IsPlaying() {
 	if (player && player->playback)
 		return player->playback->isPlaying;
 	return false;
diff --git a/libspark/playback_libeplayer3.h b/libspark/playback_libeplayer3.h
index c9379b7..a88b70f 100644
--- a/libspark/playback_libeplayer3.h
+++ b/libspark/playback_libeplayer3.h
@@ -48,7 +48,7 @@ class cPlayback
 		void FindAllDvbsubtitlePids(int *pids, unsigned int *numpidd, std::string *language);
 		void FindAllTeletextsubtitlePids(int *pids, unsigned int *numpidt, std::string *tlanguage);
 		void RequestAbort(void);
-		bool isPlaying(void);
+		bool IsPlaying(void);
 		unsigned long long GetReadCount(void);
 #if 0
 		void FindAllSubs(uint16_t *pids, unsigned short *supported, uint16_t *numpida, std::string *language);