diff --git a/application/views/qrbcalc/index.php b/application/views/qrbcalc/index.php
index f4e8a5461..c85c9f788 100644
--- a/application/views/qrbcalc/index.php
+++ b/application/views/qrbcalc/index.php
@@ -16,7 +16,7 @@
     <div class="mb-3 row">
         <label class="col-md-2 control-label" for="button1id"></label>
         <div class="col-md-4">
-            <button id="button2id" type="reset" name="button2id" class="btn-sm btn-warning">Reset</button>
+            <button id="button2id" type="reset" name="button2id" class="btn btn-sm btn-warning">Reset</button>
             <button id="button1id" type="button" onclick="calculateQrb();" name="button1id" class="btn btn-sm btn-primary">Calculate</button>
         </div>
     </div>
diff --git a/application/views/qslcard/searchform.php b/application/views/qslcard/searchform.php
index ca4d6386e..b07b173b8 100644
--- a/application/views/qslcard/searchform.php
+++ b/application/views/qslcard/searchform.php
@@ -5,7 +5,7 @@
 					<input type="text" class="form-control" id="callsign" value="">
 				</div>
 				<div class="col-sm-2">
-					<button onclick="searchAdditionalQsos('<?php echo $filename; ?>')" class="btn-sm btn-success" type="button"><i class="fas fa-search"></i> Search</button>
+					<button onclick="searchAdditionalQsos('<?php echo $filename; ?>')" class="btn btn-sm btn-success" type="button"><i class="fas fa-search"></i> Search</button>
 				</div>
 			</div>
 		</form>
diff --git a/application/views/qslcard/searchresult.php b/application/views/qslcard/searchresult.php
index dadc1e16a..ac2559ab9 100644
--- a/application/views/qslcard/searchresult.php
+++ b/application/views/qslcard/searchresult.php
@@ -190,7 +190,7 @@
 				case 'Operator':   echo '<td>' . ($row->COL_OPERATOR); break;
 			}
 			echo '</td>
-				<td><button onclick="addQsoToQsl(' . $row->COL_PRIMARY_KEY . ', \'' . $filename . '\')" class="btn-sm btn-success" type="button"> Add to QSL</button></td>';
+				<td><button onclick="addQsoToQsl(' . $row->COL_PRIMARY_KEY . ', \'' . $filename . '\')" class="btn btn-sm btn-success" type="button"> Add to QSL</button></td>';
 			echo '</tr>';
 			$i++; } ?>