diff --git a/layouts/shortcodes/paige/gallery.html b/layouts/shortcodes/paige/gallery.html
index 1a664ba4..5d3bef34 100644
--- a/layouts/shortcodes/paige/gallery.html
+++ b/layouts/shortcodes/paige/gallery.html
@@ -51,7 +51,7 @@
 {{ range $resources }}
 {{ partial "paige/image.html" (dict
     "breakpoints" $breakpoints
-    "class" $class
+    "class" (printf "img-fluid %s" $class)
     "densities" $densities
     "fetchpriority" $fetchpriority
     "height" $height
@@ -77,7 +77,7 @@
 {{ range $resources }}
 {{ partial "paige/image.html" (dict
     "breakpoints" $breakpoints
-    "class" $class
+    "class" (printf "img-fluid %s" $class)
     "densities" $densities
     "fetchpriority" $fetchpriority
     "height" $height
diff --git a/layouts/shortcodes/paige/image.html b/layouts/shortcodes/paige/image.html
index a68c14b2..d79ac533 100644
--- a/layouts/shortcodes/paige/image.html
+++ b/layouts/shortcodes/paige/image.html
@@ -21,7 +21,7 @@
     {{ partial "paige/image.html" (dict
         "alt" $alt
         "breakpoints" $breakpoints
-        "class" $class
+        "class" (printf "img-fluid %s" $class)
         "densities" $densities
         "fetchpriority" $fetchpriority
         "height" $height