diff --git a/SConstruct b/SConstruct
index 2538ea12..5a999b70 100644
--- a/SConstruct
+++ b/SConstruct
@@ -8,7 +8,7 @@ plugins = []
 stubs = []
 winstubs = []
 
-Export('SCons', 'sys', 'os', 'glob', 'resources', 
+Export('SCons', 'sys', 'os', 'glob', 'resources',
 	'plugins', 'stubs', 'winstubs')
 
 # Configure the build framework
@@ -25,7 +25,7 @@ if sys.platform == 'win32':
 
 def build(scriptFile, exports = [], duplicate = 0):
 	dirname = '/'.join(os.path.dirname(scriptFile).split('/')[1:])
-	return SConscript(scriptFile, exports, 
+	return SConscript(scriptFile, exports,
 		variant_dir=os.path.join(env['BUILDDIR'], dirname), duplicate=duplicate)
 
 # ===== Build the support libraries ====
@@ -59,7 +59,7 @@ env['SHLIBPREFIX']=''
 
 Export('env')
 
-# Utilities 
+# Utilities
 build('src/utils/SConscript')
 # Surface scattering models
 build('src/bsdfs/SConscript')
diff --git a/src/librender/trimesh.cpp b/src/librender/trimesh.cpp
index c3ee4aef..921ca9f6 100644
--- a/src/librender/trimesh.cpp
+++ b/src/librender/trimesh.cpp
@@ -1109,9 +1109,9 @@ void TriMesh::writePLY(const fs::path &path) const {
 			Vector2f uv(m_texcoords[i]); memcpy(ptr, &uv, sizeof(Vector2f)); ptr += sizeof(Vector2f);
 		}
 		if (m_colors) {
-			*ptr += (uint8_t) std::max(0.0f, std::min(255.0f, m_colors[i][0] * 255.0f + 0.5f));
-			*ptr += (uint8_t) std::max(0.0f, std::min(255.0f, m_colors[i][1] * 255.0f + 0.5f));
-			*ptr += (uint8_t) std::max(0.0f, std::min(255.0f, m_colors[i][2] * 255.0f + 0.5f));
+			*ptr += (uint8_t) std::max(0.0f, std::min(255.0f, (float) m_colors[i][0] * 255.0f + 0.5f));
+			*ptr += (uint8_t) std::max(0.0f, std::min(255.0f, (float) m_colors[i][1] * 255.0f + 0.5f));
+			*ptr += (uint8_t) std::max(0.0f, std::min(255.0f, (float) m_colors[i][2] * 255.0f + 0.5f));
 		}
 	}
 	Assert(ptr-vertexStorage == vertexStorageSize);