diff --git a/src/styles/mixins/tooltip.less b/src/styles/mixins/tooltip.less
index 64838d1b..7f3a48b7 100644
--- a/src/styles/mixins/tooltip.less
+++ b/src/styles/mixins/tooltip.less
@@ -1,7 +1,7 @@
 .popper(@arrow, @arrow-width, @arrow-distance, @bg){
     display: block;
     visibility: visible;
-    font-size: @font-size-small;
+    font-size: @font-size-base;
     line-height: @line-height-base;
     position: absolute;
     z-index: @zindex-tooltip;
@@ -82,4 +82,4 @@
     &[x-placement="bottom-end"] .@{arrow} {
         right: 16px;
     }
-}
\ No newline at end of file
+}