diff --git a/cogl/tests/conform/test-color-hsl.c b/cogl/tests/conform/test-color-hsl.c
index 15f2fe84b..fa3af5334 100644
--- a/cogl/tests/conform/test-color-hsl.c
+++ b/cogl/tests/conform/test-color-hsl.c
@@ -6,11 +6,7 @@
 #include "test-declarations.h"
 #include "test-utils.h"
 
-#define cogl_assert_float(a, b)         \
-  do {                                  \
-    if (fabsf ((a) - (b)) >= 0.0001f)   \
-      g_assert_cmpfloat ((a), ==, (b)); \
-  } while (0)
+#define TEST_CASE_EPSILON 0.0001
 
 void
 test_color_hsl (void)
@@ -21,9 +17,9 @@ test_color_hsl (void)
   cogl_color_init_from_4ub(&color, 108, 198, 78, 255);
   cogl_color_to_hsl(&color, &hue, &saturation, &luminance);
 
-  cogl_assert_float(hue, 105.f);
-  cogl_assert_float(saturation, 0.512821);
-  cogl_assert_float(luminance, 0.541176);
+  g_assert_cmpfloat_with_epsilon (hue, 105.f, TEST_CASE_EPSILON);
+  g_assert_cmpfloat_with_epsilon (saturation, 0.512821, TEST_CASE_EPSILON);
+  g_assert_cmpfloat_with_epsilon (luminance, 0.541176, TEST_CASE_EPSILON);
 
   memset(&color, 0, sizeof (CoglColor));
   cogl_color_init_from_hsl(&color, hue, saturation, luminance);
@@ -36,10 +32,14 @@ test_color_hsl (void)
   memset(&color, 0, sizeof (CoglColor));
   cogl_color_init_from_hsl(&color, hue, 0, luminance);
 
-  cogl_assert_float (cogl_color_get_red_float (&color), luminance);
-  cogl_assert_float (cogl_color_get_green_float (&color), luminance);
-  cogl_assert_float (cogl_color_get_blue_float (&color), luminance);
-  cogl_assert_float (cogl_color_get_alpha_float (&color), 1.0f);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_red_float (&color), luminance,
+                                  TEST_CASE_EPSILON);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_green_float (&color), luminance,
+                                  TEST_CASE_EPSILON);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_blue_float (&color), luminance,
+                                  TEST_CASE_EPSILON);
+  g_assert_cmpfloat_with_epsilon (cogl_color_get_alpha_float (&color), 1.0,
+                                  TEST_CASE_EPSILON);
 
   if (cogl_test_verbose ())
     g_print ("OK\n");