diff --git a/dlls/windowscodecs/jpegformat.c b/dlls/windowscodecs/jpegformat.c
index 6f788216fbe..017e6045790 100644
--- a/dlls/windowscodecs/jpegformat.c
+++ b/dlls/windowscodecs/jpegformat.c
@@ -570,7 +570,7 @@ HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
 
 HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
 {
-    ERR("Trying to load JPEG picture, but JPEG supported not compiled in.\n");
+    ERR("Trying to load JPEG picture, but JPEG support is not compiled in.\n");
     return E_FAIL;
 }
 
diff --git a/dlls/windowscodecs/pngformat.c b/dlls/windowscodecs/pngformat.c
index 22b37b063f4..5af680e876c 100644
--- a/dlls/windowscodecs/pngformat.c
+++ b/dlls/windowscodecs/pngformat.c
@@ -1320,13 +1320,13 @@ HRESULT PngEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
 
 HRESULT PngDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
 {
-    ERR("Trying to load PNG picture, but PNG supported not compiled in.\n");
+    ERR("Trying to load PNG picture, but PNG support is not compiled in.\n");
     return E_FAIL;
 }
 
 HRESULT PngEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
 {
-    ERR("Trying to save PNG picture, but PNG supported not compiled in.\n");
+    ERR("Trying to save PNG picture, but PNG support is not compiled in.\n");
     return E_FAIL;
 }