diff --git a/src/inputPlugins/aac_plugin.c b/src/inputPlugins/aac_plugin.c
index de442acf7..7fa1ba332 100644
--- a/src/inputPlugins/aac_plugin.c
+++ b/src/inputPlugins/aac_plugin.c
@@ -234,7 +234,7 @@ static float getAacFloatTotalTime(char *file)
 	size_t fileread, tagsize;
 	faacDecHandle decoder;
 	faacDecConfigurationPtr config;
-	unsigned long sampleRate;
+	uint32_t sampleRate;
 	unsigned char channels;
 	InputStream inStream;
 	long bread;
@@ -290,7 +290,7 @@ static int aac_decode(OutputBuffer * cb, DecoderControl * dc, char *path)
 	faacDecFrameInfo frameInfo;
 	faacDecConfigurationPtr config;
 	long bread;
-	unsigned long sampleRate;
+	uint32_t sampleRate;
 	unsigned char channels;
 	int eof = 0;
 	unsigned int sampleCount;
diff --git a/src/inputPlugins/mp4_plugin.c b/src/inputPlugins/mp4_plugin.c
index c4a04f582..adaa644b9 100644
--- a/src/inputPlugins/mp4_plugin.c
+++ b/src/inputPlugins/mp4_plugin.c
@@ -97,7 +97,7 @@ static int mp4_decode(OutputBuffer * cb, DecoderControl * dc,
 	faacDecConfigurationPtr config;
 	unsigned char *mp4Buffer;
 	unsigned int mp4BufferSize;
-	unsigned long sampleRate;
+	uint32_t sampleRate;
 	unsigned char channels;
 	long sampleId;
 	long numSamples;