diff --git a/include/GLFW/glfw3.h b/include/GLFW/glfw3.h
index 7d1787dd8..021eeb5ea 100644
--- a/include/GLFW/glfw3.h
+++ b/include/GLFW/glfw3.h
@@ -3926,7 +3926,7 @@ GLFWAPI int glfwGetMouseButton(GLFWwindow* handle, int button);
 *
 *  @ingroup input
 */
-GLFWAPI int glfwGetPenPressure(GLFWwindow* handle);
+GLFWAPI double glfwGetPenPressure(GLFWwindow* handle);
 
 /*! @brief Retrieves the position of the cursor relative to the client area of
  *  the window.