diff --git a/DesktopEditor/doctrenderer/docbuilder_p.h b/DesktopEditor/doctrenderer/docbuilder_p.h
index d955b3fb33..64ece3555a 100644
--- a/DesktopEditor/doctrenderer/docbuilder_p.h
+++ b/DesktopEditor/doctrenderer/docbuilder_p.h
@@ -1400,7 +1400,7 @@ namespace NSDoctRenderer
 			FILE* pFile = oFile.OpenFileNative(sFile, append ? L"a+" : L"a");
 			if (pFile)
 			{
-				fprintf(pFile, sValueA.c_str());
+				fprintf(pFile, "%s", sValueA.c_str());
 				fclose(pFile);
 			}
 		}
diff --git a/DesktopEditor/doctrenderer/js_internal/js_logger.cpp b/DesktopEditor/doctrenderer/js_internal/js_logger.cpp
index b59ce98b0d..795dcb9ec0 100644
--- a/DesktopEditor/doctrenderer/js_internal/js_logger.cpp
+++ b/DesktopEditor/doctrenderer/js_internal/js_logger.cpp
@@ -21,7 +21,7 @@ namespace NSJSBase
 
 		if (g_logger_file.length() == 1)
 		{
-			printf(details);
+			printf("%s", details);
 			printf(": %d\n", (int)(dwCur - g_logger_time));
 		}
 		else