Learning, which is the main key of innovation, is an indispensable element for companies to gain sustainable competitive advantage. Although not being adequately studied in management literature, network learning capability, a type of organizational learning ability, is a determining factor in the innovation process. Likewise, open-mindedness is a component that accelerates the creation of knowledge in the organization as well as encouraging the organization to be open towards new opportunities and to value different opinions. In this study, a model including these variables was designed and the mediator role of network learning in the relationship between open-mindedness and innovation performance was explored. It is suggested that open-mindedness has a positive effect on innovation performance and that network learning capability possesses a mediator role in this relationship. The data were collected through surveys answered by the middle and senior managers of Turkey's leading companies. As a result, it is pointed out that there is a positive and significant relationship between open-mindedness and innovation performance, and that network learning has a mediator effect on this relationship. This study adds value to the management literature by highlighting the momentousness of network learning capability in the innovation process as well as offering several avenues of future studies and implications for different stakeholders.