diff --git a/src/Nazara/Utility/IndexBuffer.cpp b/src/Nazara/Utility/IndexBuffer.cpp
index 2f13fad5f..d1b3bfc1c 100644
--- a/src/Nazara/Utility/IndexBuffer.cpp
+++ b/src/Nazara/Utility/IndexBuffer.cpp
@@ -177,9 +177,9 @@ void NzIndexBuffer::Reset(bool largeIndices, NzBuffer* buffer, unsigned int star
 		return;
 	}
 
-	if (endOffset > startOffset)
+	if (startOffset > endOffset)
 	{
-		NazaraError("End offset cannot be over start offset");
+		NazaraError("Start offset cannot be over end offset");
 		return;
 	}
 
diff --git a/src/Nazara/Utility/VertexBuffer.cpp b/src/Nazara/Utility/VertexBuffer.cpp
index 5bde1935b..c5b9f300f 100644
--- a/src/Nazara/Utility/VertexBuffer.cpp
+++ b/src/Nazara/Utility/VertexBuffer.cpp
@@ -189,9 +189,9 @@ void NzVertexBuffer::Reset(const NzVertexDeclaration* vertexDeclaration, NzBuffe
 		return;
 	}
 
-	if (endOffset > startOffset)
+	if (startOffset > endOffset)
 	{
-		NazaraError("End offset cannot be over start offset");
+		NazaraError("Start offset cannot be over end offset");
 		return;
 	}