diff --git a/modules/bioinspired/src/opencl/retina_kernel.cl b/modules/bioinspired/src/opencl/retina_kernel.cl
index 515dfdea56..169be4d270 100644
--- a/modules/bioinspired/src/opencl/retina_kernel.cl
+++ b/modules/bioinspired/src/opencl/retina_kernel.cl
@@ -126,7 +126,7 @@ kernel void horizontalAnticausalFilter(
         {
             result = *optr + _a * result;
         }
-		*optr = result;
+        *optr = result;
     }
     result_v4.x = result;
     optr -= 3;
@@ -229,7 +229,7 @@ kernel void horizontalAnticausalFilter_Irregular(
         {
             result = *optr + *bptr * result;
         }
-		*optr = result;
+        *optr = result;
     }
     res_v4.x = result;
     optr -= 3;