diff --git a/std/internal/math/gammafunction.d b/std/internal/math/gammafunction.d
index ec403193e4e..a33d98b0b02 100644
--- a/std/internal/math/gammafunction.d
+++ b/std/internal/math/gammafunction.d
@@ -566,8 +566,8 @@ real logGamma(real x)
             assert( feqrel(log(fabs(gamma(testpoints[i]))), testpoints[i+1]) > real.mant_dig-5);
         }
     }
-    assert(logGamma(-50.2) == log(fabs(gamma(-50.2))));
-    assert(logGamma(-0.008) == log(fabs(gamma(-0.008))));
+    assert(feqrel(logGamma(-50.2),log(fabs(gamma(-50.2)))) > real.mant_dig-2);
+    assert(feqrel(logGamma(-0.008),log(fabs(gamma(-0.008)))) > real.mant_dig-2);
     assert(feqrel(logGamma(-38.8),log(fabs(gamma(-38.8)))) > real.mant_dig-4);
     static if (real.mant_dig >= 64) // incl. 80-bit reals
         assert(feqrel(logGamma(1500.0L),log(gamma(1500.0L))) > real.mant_dig-2);