diff --git a/bson2json.c b/bson2json.c
index 15bf305..8f497e5 100644
--- a/bson2json.c
+++ b/bson2json.c
@@ -25,11 +25,11 @@ die(char *format, ...) {
 void
 json_string_stdin(int32_t *doc_size)
 {
-    int c;
-    putchar('"');
+	int c;
+	putchar('"');
 	for (c = getchar(); c != 0x00 && c != EOF; c = getchar()) {
 		*doc_size -= 1;
-    	switch (c) {
+		switch (c) {
 		case '"':
 			fputs("\\\"", stdout);
 			break;
@@ -60,7 +60,7 @@ json_string_stdin(int32_t *doc_size)
 				continue;
 			}
 			putchar(c);
-    	}
+		}
 	}
 	putchar('"');
 	*doc_size -= 1;
@@ -125,15 +125,15 @@ print_bson(uint8_t is_array)
 			size -= 8;
 			break;
 		case 0x02: case 0x0D: case 0x0E: // string, javascript code, symbol
-    		fread(&DATA_BUFFER, 4, 1, stdin);
-    		size -= 4;
-    		json_string_stdin(&size);
-    		break;
-    	case 0x03: // document
-	    	size -= print_bson(0);
-	    	break;
-	    case 0x04: // array
-		    size -= print_bson(1);
+			fread(&DATA_BUFFER, 4, 1, stdin);
+			size -= 4;
+			json_string_stdin(&size);
+			break;
+		case 0x03: // document
+			size -= print_bson(0);
+			break;
+		case 0x04: // array
+			size -= print_bson(1);
 			break;
 		case 0x05: // binary
 			fread(&DATA_BUFFER, 4, 1, stdin);
@@ -227,8 +227,8 @@ print_bson(uint8_t is_array)
 		case 0xFF: case 0x7F: // min/max type idc about these
 			fputs("null", stdout);
 			break;
-    	default:
-	    	die("bson2json: error: unknown byte for item type. this is most likely the result of some other data bug.\n");
+		default:
+			die("bson2json: error: unknown byte for item type. this is most likely the result of some other data bug.\n");
 		}
 		if (size > 1) {
 			putchar(',');