diff --git a/dlls/dsound/tests/ds3d.c b/dlls/dsound/tests/ds3d.c
index ce7be84460d..3d0c4340f86 100644
--- a/dlls/dsound/tests/ds3d.c
+++ b/dlls/dsound/tests/ds3d.c
@@ -378,8 +378,8 @@ void test_buffer(LPDIRECTSOUND dso, LPDIRECTSOUNDBUFFER *dsbo,
 
         init_format(&wfx2,WAVE_FORMAT_PCM,11025,16,2);
         rc=IDirectSoundBuffer_SetFormat(*dsbo,&wfx2);
-        ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat() failed: %s\n",
-           DXGetErrorString8(rc));
+        ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat(%s) failed: %s\n",
+           format_string(&wfx2), DXGetErrorString8(rc));
 
         /* There is no garantee that SetFormat will actually change the
 	 * format to what we asked for. It depends on what the soundcard
diff --git a/dlls/dsound/tests/ds3d8.c b/dlls/dsound/tests/ds3d8.c
index 6d440e2f034..c0c5d518ad0 100644
--- a/dlls/dsound/tests/ds3d8.c
+++ b/dlls/dsound/tests/ds3d8.c
@@ -270,8 +270,8 @@ void test_buffer8(LPDIRECTSOUND8 dso, LPDIRECTSOUNDBUFFER * dsbo,
 
         init_format(&wfx2,WAVE_FORMAT_PCM,11025,16,2);
         rc=IDirectSoundBuffer_SetFormat(*dsbo,&wfx2);
-        ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat() failed: %s\n",
-           DXGetErrorString8(rc));
+        ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat(%s) failed: %s\n",
+           format_string(&wfx2), DXGetErrorString8(rc));
 
         /* There is no garantee that SetFormat will actually change the
 	 * format to what we asked for. It depends on what the soundcard
diff --git a/dlls/dsound/tests/dsound.c b/dlls/dsound/tests/dsound.c
index 672ffe2f93e..7905c99c1b2 100644
--- a/dlls/dsound/tests/dsound.c
+++ b/dlls/dsound/tests/dsound.c
@@ -550,8 +550,8 @@ static HRESULT test_primary_secondary(LPGUID lpGuid)
                         formats[f][2]);
             wfx2=wfx;
             rc=IDirectSoundBuffer_SetFormat(primary,&wfx);
-            ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat() failed: %s\n",
-               DXGetErrorString8(rc));
+            ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat(%s) failed: %s\n",
+               format_string(&wfx), DXGetErrorString8(rc));
 
             /* There is no garantee that SetFormat will actually change the
              * format to what we asked for. It depends on what the soundcard
diff --git a/dlls/dsound/tests/dsound8.c b/dlls/dsound/tests/dsound8.c
index b5dc48393f0..7a583302ac8 100644
--- a/dlls/dsound/tests/dsound8.c
+++ b/dlls/dsound/tests/dsound8.c
@@ -582,8 +582,8 @@ static HRESULT test_primary_secondary8(LPGUID lpGuid)
                         formats[f][2]);
             wfx2=wfx;
             rc=IDirectSoundBuffer_SetFormat(primary,&wfx);
-            ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat() failed: %s\n",
-               DXGetErrorString8(rc));
+            ok(rc==DS_OK,"IDirectSoundBuffer_SetFormat(%s) failed: %s\n",
+               format_string(&wfx), DXGetErrorString8(rc));
 
             /* There is no garantee that SetFormat will actually change the
              * format to what we asked for. It depends on what the soundcard