diff --git a/servers/physics_2d/space_2d_sw.cpp b/servers/physics_2d/space_2d_sw.cpp
index 7ae2e9769fd5..33e6cb5f5f47 100644
--- a/servers/physics_2d/space_2d_sw.cpp
+++ b/servers/physics_2d/space_2d_sw.cpp
@@ -989,7 +989,8 @@ bool Space2DSW::test_body_motion(Body2DSW *p_body, const Transform2D &p_from, co
 			if (stuck) {
 
 				safe = 0;
-				unsafe = 0;
+				// Set unsafe to the minimum after eight steps = 1/2^8.
+				unsafe = 1.0 / (1 << 8);
 				best_shape = body_shape_idx; //sadly it's the best
 				break;
 			}
diff --git a/servers/physics_3d/space_3d_sw.cpp b/servers/physics_3d/space_3d_sw.cpp
index bd8e89a8f5f6..dea562ce2773 100644
--- a/servers/physics_3d/space_3d_sw.cpp
+++ b/servers/physics_3d/space_3d_sw.cpp
@@ -900,7 +900,8 @@ bool Space3DSW::test_body_motion(Body3DSW *p_body, const Transform &p_from, cons
 			if (stuck) {
 
 				safe = 0;
-				unsafe = 0;
+				// Set unsafe to the minimum after eight steps = 1/2^8.
+				unsafe = 1.0 / (1 << 8);
 				best_shape = j; //sadly it's the best
 				break;
 			}