diff --git a/openVulkanoCpp/IO/Files/Pnm.hpp b/openVulkanoCpp/IO/Files/Pnm.hpp
index 99e8e96..f0995b4 100644
--- a/openVulkanoCpp/IO/Files/Pnm.hpp
+++ b/openVulkanoCpp/IO/Files/Pnm.hpp
@@ -88,20 +88,20 @@ namespace OpenVulkano
 			pnmHeader.ascii = val < 4;
 			pnmHeader.color = static_cast<ColorMode>(val - 3);
 
-			if (!(inStream >> pnmHeader.width >> pnmHeader.height))
+			if (!(inStream >> pnmHeader.width >> pnmHeader.height)) [[unlikely]]
 			{
 				throw std::runtime_error("Malformed PNM header: Unable to read width and height!");
 			}
-			if (pnmHeader.width == 0 || pnmHeader.height == 0)
+			if (pnmHeader.width == 0 || pnmHeader.height == 0) [[unlikely]]
 			{
 				throw std::runtime_error("Malformed PNM header: Width and height must be positive!");
 			}
 
-			if (!(inStream >> pnmHeader.maxValue))
+			if (!(inStream >> pnmHeader.maxValue)) [[unlikely]]
 			{
 				throw std::runtime_error("Malformed PNM header: Unable to read maxValue!");
 			}
-			if (pnmHeader.maxValue == 0 || pnmHeader.maxValue > 65535)
+			if (pnmHeader.maxValue == 0 || pnmHeader.maxValue > 65535) [[unlikely]]
 			{
 				throw std::runtime_error("Malformed PNM header: Invalid maxValue (must be between 1 and 65535)!");
 			}