diff --git a/openpype/hosts/maya/plugins/publish/convert_gltf_shader.py b/openpype/hosts/maya/plugins/publish/convert_gltf_shader.py
index f7cfd33c0b..0b084223fe 100644
--- a/openpype/hosts/maya/plugins/publish/convert_gltf_shader.py
+++ b/openpype/hosts/maya/plugins/publish/convert_gltf_shader.py
@@ -68,7 +68,7 @@ class ConvertGLSLShader(publish.Extractor):
 
                     mtl = glsl + ".u_MetallicTexture"
                     ao = glsl + ".u_OcclusionTexture"
-                    rough = glsl + "u_RoughnessTexture"
+                    rough = glsl + ".u_RoughnessTexture"
 
                     cmds.connectAttr(orm_output, mtl)
                     cmds.connectAttr(orm_output, ao)