diff --git a/server/encoder/opus_encoder.cpp b/server/encoder/opus_encoder.cpp
index 168dc012..cd1d3102 100644
--- a/server/encoder/opus_encoder.cpp
+++ b/server/encoder/opus_encoder.cpp
@@ -146,7 +146,7 @@ void OpusEncoder::initEncoder()
 
     // create some opus pseudo header to let the decoder know about the sample format
     headerChunk_->payloadSize = 12;
-    headerChunk_->payload = (char*)malloc(headerChunk_->payloadSize);
+    headerChunk_->payload = (char*)realloc(headerChunk_->payload, headerChunk_->payloadSize);
     char* payload = headerChunk_->payload;
     assign(payload, SWAP_32(ID_OPUS));
     assign(payload + 4, SWAP_32(sampleFormat_.rate));
diff --git a/server/encoder/pcm_encoder.cpp b/server/encoder/pcm_encoder.cpp
index aff86a06..203f2ac7 100644
--- a/server/encoder/pcm_encoder.cpp
+++ b/server/encoder/pcm_encoder.cpp
@@ -57,7 +57,7 @@ void PcmEncoder::encode(const msg::PcmChunk* chunk)
 void PcmEncoder::initEncoder()
 {
     headerChunk_->payloadSize = 44;
-    headerChunk_->payload = (char*)malloc(headerChunk_->payloadSize);
+    headerChunk_->payload = (char*)realloc(headerChunk_->payload, headerChunk_->payloadSize);
     char* payload = headerChunk_->payload;
     assign(payload, SWAP_32(ID_RIFF));
     assign(payload + 4, SWAP_32(36));