diff --git a/samples/0_Intro/square/square.hipref.cpp b/samples/0_Intro/square/square.hipref.cpp
index aa14077738..7ca3a7500d 100644
--- a/samples/0_Intro/square/square.hipref.cpp
+++ b/samples/0_Intro/square/square.hipref.cpp
@@ -31,7 +31,6 @@ THE SOFTWARE.
 	}\
 }
 
-
 /* 
  * Square each element in the array A and write to array C.
  */
@@ -43,55 +42,54 @@ vector_square(hipLaunchParm lp, T *C_d, const T *A_d, size_t N)
     size_t stride = hipBlockDim_x * hipGridDim_x ;
 
     for (size_t i=offset; i<N; i+=stride) {
-		C_d[i] = A_d[i] * A_d[i];
-	}
+        C_d[i] = A_d[i] * A_d[i];
+    }
 }
 
 
 int main(int argc, char *argv[])
 {
-	float *A_d, *C_d;
-	float *A_h, *C_h;
-	size_t N = 1000000;
-	size_t Nbytes = N * sizeof(float);
+    float *A_d, *C_d;
+    float *A_h, *C_h;
+    size_t N = 1000000;
+    size_t Nbytes = N * sizeof(float);
 
-	hipDeviceProp_t props;
-	CHECK(hipGetDeviceProperties(&props, 0/*deviceID*/));
-	printf ("info: running on device %s\n", props.name);
+    hipDeviceProp_t props;
+    CHECK(hipGetDeviceProperties(&props, 0/*deviceID*/));
+    printf ("info: running on device %s\n", props.name);
 
-	printf ("info: allocate host mem (%6.2f MB)\n", 2*Nbytes/1024.0/1024.0);
-	A_h = (float*)malloc(Nbytes);
-	CHECK(A_h == 0 ? hipErrorMemoryAllocation : hipSuccess );
-	C_h = (float*)malloc(Nbytes);
-	CHECK(C_h == 0 ? hipErrorMemoryAllocation : hipSuccess );
+    printf ("info: allocate host mem (%6.2f MB)\n", 2*Nbytes/1024.0/1024.0);
+    A_h = (float*)malloc(Nbytes);
+    CHECK(A_h == 0 ? hipErrorMemoryAllocation : hipSuccess );
+    C_h = (float*)malloc(Nbytes);
+    CHECK(C_h == 0 ? hipErrorMemoryAllocation : hipSuccess );
 	// Fill with Phi + i
     for (size_t i=0; i<N; i++) 
-	{
-		A_h[i] = 1.618f + i; 
-	}
+    {
+        A_h[i] = 1.618f + i; 
+    }
 
-	printf ("info: allocate device mem (%6.2f MB)\n", 2*Nbytes/1024.0/1024.0);
-	CHECK(hipMalloc(&A_d, Nbytes));
-	CHECK(hipMalloc(&C_d, Nbytes));
+    printf ("info: allocate device mem (%6.2f MB)\n", 2*Nbytes/1024.0/1024.0);
+    CHECK(hipMalloc(&A_d, Nbytes));
+    CHECK(hipMalloc(&C_d, Nbytes));
 
-
-	printf ("info: copy Host2Device\n");
+    printf ("info: copy Host2Device\n");
     CHECK ( hipMemcpy(A_d, A_h, Nbytes, hipMemcpyHostToDevice));
 
-	const unsigned blocks = 512;
-	const unsigned threadsPerBlock = 256;
+    const unsigned blocks = 512;
+    const unsigned threadsPerBlock = 256;
 
-	printf ("info: launch 'vector_square' kernel\n");
-	hipLaunchKernel(HIP_KERNEL_NAME(vector_square), dim3(blocks), dim3(threadsPerBlock), 0, 0, C_d, A_d, N);
+    printf ("info: launch 'vector_square' kernel\n");
+    hipLaunchKernel(HIP_KERNEL_NAME(vector_square), dim3(blocks), dim3(threadsPerBlock), 0, 0, C_d, A_d, N);
 
-	printf ("info: copy Device2Host\n");
+    printf ("info: copy Device2Host\n");
     CHECK ( hipMemcpy(C_h, C_d, Nbytes, hipMemcpyDeviceToHost));
 
-	printf ("info: check result\n");
+    printf ("info: check result\n");
     for (size_t i=0; i<N; i++)  {
-		if (C_h[i] != A_h[i] * A_h[i]) {
-			CHECK(hipErrorUnknown);
-		}
-	}
-	printf ("PASSED!\n");
+        if (C_h[i] != A_h[i] * A_h[i]) {
+            CHECK(hipErrorUnknown);
+        }
+    }
+    printf ("PASSED!\n");
 }