diff --git a/glfw/glfw3.h b/glfw/glfw3.h
index 3c50fdd84..feb8774bd 100644
--- a/glfw/glfw3.h
+++ b/glfw/glfw3.h
@@ -1313,10 +1313,7 @@ typedef struct GLFWLayerShellConfig {
     GLFWFocusPolicy focus_policy;
     unsigned x_size_in_cells, x_size_in_pixels;
     unsigned y_size_in_cells, y_size_in_pixels;
-    unsigned requested_top_margin;
-    unsigned requested_left_margin;
-    unsigned requested_bottom_margin;
-    unsigned requested_right_margin;
+    int requested_top_margin, requested_left_margin, requested_bottom_margin, requested_right_margin;
     int requested_exclusive_zone;
     unsigned override_exclusive_zone;
     void (*size_callback)(GLFWwindow *window, float xscale, float yscale, unsigned *cell_width, unsigned *cell_height, double *left_edge_spacing, double *top_edge_spacing, double *right_edge_spacing, double *bottom_edge_spacing);
diff --git a/kitty/glfw-wrapper.h b/kitty/glfw-wrapper.h
index 49d79337c..fca9f20c0 100644
--- a/kitty/glfw-wrapper.h
+++ b/kitty/glfw-wrapper.h
@@ -1051,10 +1051,7 @@ typedef struct GLFWLayerShellConfig {
     GLFWFocusPolicy focus_policy;
     unsigned x_size_in_cells, x_size_in_pixels;
     unsigned y_size_in_cells, y_size_in_pixels;
-    unsigned requested_top_margin;
-    unsigned requested_left_margin;
-    unsigned requested_bottom_margin;
-    unsigned requested_right_margin;
+    int requested_top_margin, requested_left_margin, requested_bottom_margin, requested_right_margin;
     int requested_exclusive_zone;
     unsigned override_exclusive_zone;
     void (*size_callback)(GLFWwindow *window, float xscale, float yscale, unsigned *cell_width, unsigned *cell_height, double *left_edge_spacing, double *top_edge_spacing, double *right_edge_spacing, double *bottom_edge_spacing);
diff --git a/kitty/glfw.c b/kitty/glfw.c
index 3fd03b430..2805c5d67 100644
--- a/kitty/glfw.c
+++ b/kitty/glfw.c
@@ -1166,10 +1166,10 @@ layer_shell_config_to_python(const GLFWLayerShellConfig *c) {
     A(y_size_in_cells, fu);
     A(x_size_in_pixels, fu);
     A(y_size_in_pixels, fu);
-    A(requested_top_margin, fu);
-    A(requested_left_margin, fu);
-    A(requested_bottom_margin, fu);
-    A(requested_right_margin, fu);
+    A(requested_top_margin, fl);
+    A(requested_left_margin, fl);
+    A(requested_bottom_margin, fl);
+    A(requested_right_margin, fl);
     A(requested_exclusive_zone, fl);
     A(override_exclusive_zone, b);
 #undef A
@@ -1187,10 +1187,10 @@ layer_shell_config_from_python(PyObject *p, GLFWLayerShellConfig *ans) {
     A(type, PyLong_Check, PyLong_AsLong);
     A(edge, PyLong_Check, PyLong_AsLong);
     A(focus_policy, PyLong_Check, PyLong_AsLong);
-    A(x_size_in_cells, PyLong_Check, PyLong_AsLong);
-    A(y_size_in_cells, PyLong_Check, PyLong_AsLong);
-    A(x_size_in_pixels, PyLong_Check, PyLong_AsLong);
-    A(y_size_in_pixels, PyLong_Check, PyLong_AsLong);
+    A(x_size_in_cells, PyLong_Check, PyLong_AsUnsignedLong);
+    A(y_size_in_cells, PyLong_Check, PyLong_AsUnsignedLong);
+    A(x_size_in_pixels, PyLong_Check, PyLong_AsUnsignedLong);
+    A(y_size_in_pixels, PyLong_Check, PyLong_AsUnsignedLong);
     A(requested_top_margin, PyLong_Check, PyLong_AsLong);
     A(requested_left_margin, PyLong_Check, PyLong_AsLong);
     A(requested_bottom_margin, PyLong_Check, PyLong_AsLong);