diff --git a/libfreerdp/core/bulk.c b/libfreerdp/core/bulk.c
index 467a37521..5a4cb0380 100644
--- a/libfreerdp/core/bulk.c
+++ b/libfreerdp/core/bulk.c
@@ -26,6 +26,19 @@
 #define TAG "com.freerdp.core"
 
 //#define WITH_BULK_DEBUG		1
+struct rdp_bulk
+{
+	rdpContext* context;
+	UINT32 CompressionLevel;
+	UINT32 CompressionMaxSize;
+	MPPC_CONTEXT* mppcSend;
+	MPPC_CONTEXT* mppcRecv;
+	NCRUSH_CONTEXT* ncrushRecv;
+	NCRUSH_CONTEXT* ncrushSend;
+	XCRUSH_CONTEXT* xcrushRecv;
+	XCRUSH_CONTEXT* xcrushSend;
+	BYTE OutputBuffer[65536];
+};
 
 static INLINE const char* bulk_get_compression_flags_string(UINT32 flags)
 {
@@ -51,7 +64,7 @@ static INLINE const char* bulk_get_compression_flags_string(UINT32 flags)
 	return "PACKET_UNKNOWN";
 }
 
-UINT32 bulk_compression_level(rdpBulk* bulk)
+static UINT32 bulk_compression_level(rdpBulk* bulk)
 {
 	rdpSettings* settings = bulk->context->settings;
 	bulk->CompressionLevel = (settings->CompressionLevel >= PACKET_COMPR_TYPE_RDP61)
diff --git a/libfreerdp/core/bulk.h b/libfreerdp/core/bulk.h
index 3b134d34a..9caa4a821 100644
--- a/libfreerdp/core/bulk.h
+++ b/libfreerdp/core/bulk.h
@@ -29,24 +29,9 @@ typedef struct rdp_bulk rdpBulk;
 #include <freerdp/codec/ncrush.h>
 #include <freerdp/codec/xcrush.h>
 
-struct rdp_bulk
-{
-	rdpContext* context;
-	UINT32 CompressionLevel;
-	UINT32 CompressionMaxSize;
-	MPPC_CONTEXT* mppcSend;
-	MPPC_CONTEXT* mppcRecv;
-	NCRUSH_CONTEXT* ncrushRecv;
-	NCRUSH_CONTEXT* ncrushSend;
-	XCRUSH_CONTEXT* xcrushRecv;
-	XCRUSH_CONTEXT* xcrushSend;
-	BYTE OutputBuffer[65536];
-};
-
 #define BULK_COMPRESSION_FLAGS_MASK 0xE0
 #define BULK_COMPRESSION_TYPE_MASK 0x0F
 
-FREERDP_LOCAL UINT32 bulk_compression_level(rdpBulk* bulk);
 FREERDP_LOCAL UINT32 bulk_compression_max_size(rdpBulk* bulk);
 
 FREERDP_LOCAL int bulk_decompress(rdpBulk* bulk, BYTE* pSrcData, UINT32 SrcSize, BYTE** ppDstData,