diff --git a/core/jni/android/graphics/pdf/PdfEditor.cpp b/core/jni/android/graphics/pdf/PdfEditor.cpp
index 46d495064635f..98c42c93fe8c2 100644
--- a/core/jni/android/graphics/pdf/PdfEditor.cpp
+++ b/core/jni/android/graphics/pdf/PdfEditor.cpp
@@ -155,7 +155,7 @@ static bool writeAllBytes(const int fd, const void* buffer, const size_t byteCou
 static int writeBlock(FPDF_FILEWRITE* owner, const void* buffer, unsigned long size) {
     const PdfToFdWriter* writer = reinterpret_cast<PdfToFdWriter*>(owner);
     const bool success = writeAllBytes(writer->dstFd, buffer, size);
-    if (success < 0) {
+    if (!success) {
         ALOGE("Cannot write to file descriptor. Error:%d", errno);
         return 0;
     }