diff --git a/src/engraving/tests/testbase.cpp b/src/engraving/tests/testbase.cpp
index f6981b0a8d8d..354a5599fe32 100644
--- a/src/engraving/tests/testbase.cpp
+++ b/src/engraving/tests/testbase.cpp
@@ -207,7 +207,7 @@ bool MTest::saveMimeData(QByteArray mimeData, const QString& saveName)
     }
 
     size_t size = f.write(mimeData);
-    return size == mimeData.size();
+    return size == static_cast<size_t>(mimeData.size());
 }
 
 //---------------------------------------------------------
diff --git a/src/engraving/utests/utils/scorerw.cpp b/src/engraving/utests/utils/scorerw.cpp
index 8be31cc9e2c1..70ba7b626dba 100644
--- a/src/engraving/utests/utils/scorerw.cpp
+++ b/src/engraving/utests/utils/scorerw.cpp
@@ -117,5 +117,5 @@ bool ScoreRW::saveMimeData(QByteArray mimeData, const QString& saveName)
     }
 
     size_t size = f.write(mimeData);
-    return size == mimeData.size();
+    return size == static_cast<size_t>(mimeData.size());
 }