diff --git a/include/xact3.h b/include/xact3.h
index 9b8f480829e..a1df1a51330 100644
--- a/include/xact3.h
+++ b/include/xact3.h
@@ -354,23 +354,6 @@ typedef struct XACT_NOTIFICATION_CUE
 } XACT_NOTIFICATION_CUE, *LPXACT_NOTIFICATION_CUE;
 typedef const XACT_NOTIFICATION_CUE *LPCXACT_NOTIFICATION_CUE;
 
-typedef struct XACT_WAVE_PROPERTIES
-{
-    char friendlyName[WAVEBANK_ENTRYNAME_LENGTH];
-    WAVEBANKMINIWAVEFORMAT format;
-    DWORD durationInSamples;
-    WAVEBANKSAMPLEREGION loopRegion;
-    BOOL streaming;
-} XACT_WAVE_PROPERTIES, *LPXACT_WAVE_PROPERTIES;
-typedef const XACT_WAVE_PROPERTIES *LPCXACT_WAVE_PROPERTIES;
-
-typedef struct XACT_WAVE_INSTANCE_PROPERTIES
-{
-    XACT_WAVE_PROPERTIES properties;
-    BOOL backgroundMusic;
-} XACT_WAVE_INSTANCE_PROPERTIES, *LPXACT_WAVE_INSTANCE_PROPERTIES;
-typedef const XACT_WAVE_INSTANCE_PROPERTIES *LPCXACT_WAVE_INSTANCE_PROPERTIES;
-
 typedef struct XACT_NOTIFICATION_MARKER
 {
     XACTINDEX cueIndex;
@@ -442,6 +425,25 @@ typedef void (__stdcall *XACT_NOTIFICATION_CALLBACK)(
     const XACT_NOTIFICATION *pNotification
 );
 
+#include <poppack.h>
+
+typedef struct XACT_WAVE_PROPERTIES
+{
+    char friendlyName[WAVEBANK_ENTRYNAME_LENGTH];
+    WAVEBANKMINIWAVEFORMAT format;
+    DWORD durationInSamples;
+    WAVEBANKSAMPLEREGION loopRegion;
+    BOOL streaming;
+} XACT_WAVE_PROPERTIES, *LPXACT_WAVE_PROPERTIES;
+typedef const XACT_WAVE_PROPERTIES *LPCXACT_WAVE_PROPERTIES;
+
+typedef struct XACT_WAVE_INSTANCE_PROPERTIES
+{
+    XACT_WAVE_PROPERTIES properties;
+    BOOL backgroundMusic;
+} XACT_WAVE_INSTANCE_PROPERTIES, *LPXACT_WAVE_INSTANCE_PROPERTIES;
+typedef const XACT_WAVE_INSTANCE_PROPERTIES *LPCXACT_WAVE_INSTANCE_PROPERTIES;
+
 typedef struct XACT_RUNTIME_PARAMETERS
 {
     DWORD lookAheadTime;
@@ -457,8 +459,6 @@ typedef struct XACT_RUNTIME_PARAMETERS
 } XACT_RUNTIME_PARAMETERS, *LPXACT_RUNTIME_PARAMETERS;
 typedef const XACT_RUNTIME_PARAMETERS *LPCXACT_RUNTIME_PARAMETERS;
 
-#include <poppack.h>
-
 #define XACT_FLAG_CUE_STOP_RELEASE   XACT_FLAG_STOP_RELEASE
 #define XACT_FLAG_CUE_STOP_IMMEDIATE XACT_FLAG_STOP_IMMEDIATE