diff --git a/dlls/mfplat/buffer.c b/dlls/mfplat/buffer.c
index 0d912a7afeb..b0b5ccc42ab 100644
--- a/dlls/mfplat/buffer.c
+++ b/dlls/mfplat/buffer.c
@@ -483,7 +483,7 @@ static HRESULT WINAPI sample_SetGUID(IMFSample *iface, REFGUID key, REFGUID valu
 {
     struct sample *sample = impl_from_IMFSample(iface);
 
-    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_guid(value));
+    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_mf_guid(value));
 
     return attributes_SetGUID(&sample->attributes, key, value);
 }
diff --git a/dlls/mfplat/main.c b/dlls/mfplat/main.c
index 74b609b0c2b..8efe6802b69 100644
--- a/dlls/mfplat/main.c
+++ b/dlls/mfplat/main.c
@@ -5705,7 +5705,7 @@ static HRESULT WINAPI mfmediaevent_SetGUID(IMFMediaEvent *iface, REFGUID key, RE
 {
     struct media_event *event = impl_from_IMFMediaEvent(iface);
 
-    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_guid(value));
+    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_mf_guid(value));
 
     return attributes_SetGUID(&event->attributes, key, value);
 }
diff --git a/dlls/mfplat/mediatype.c b/dlls/mfplat/mediatype.c
index e522e90f014..e23ebd1fb96 100644
--- a/dlls/mfplat/mediatype.c
+++ b/dlls/mfplat/mediatype.c
@@ -324,7 +324,7 @@ static HRESULT WINAPI mediatype_SetGUID(IMFMediaType *iface, REFGUID key, REFGUI
 {
     struct media_type *media_type = impl_from_IMFMediaType(iface);
 
-    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_guid(value));
+    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_mf_guid(value));
 
     return attributes_SetGUID(&media_type->attributes, key, value);
 }
@@ -871,7 +871,7 @@ static HRESULT WINAPI stream_descriptor_SetGUID(IMFStreamDescriptor *iface, REFG
 {
     struct stream_desc *stream_desc = impl_from_IMFStreamDescriptor(iface);
 
-    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_guid(value));
+    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_mf_guid(value));
 
     return attributes_SetGUID(&stream_desc->attributes, key, value);
 }
@@ -1450,7 +1450,7 @@ static HRESULT WINAPI presentation_descriptor_SetGUID(IMFPresentationDescriptor
 {
     struct presentation_desc *presentation_desc = impl_from_IMFPresentationDescriptor(iface);
 
-    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_guid(value));
+    TRACE("%p, %s, %s.\n", iface, debugstr_attr(key), debugstr_mf_guid(value));
 
     return attributes_SetGUID(&presentation_desc->attributes, key, value);
 }