diff --git a/src/dtoa.c b/src/dtoa.c
index 554e0f248..949c59528 100644
--- a/src/dtoa.c
+++ b/src/dtoa.c
@@ -167,7 +167,7 @@
  *	FREE_DTOA_LOCK(...) are avoided; instead each thread with thread
  *	number < n has a separate copy of relevant data structures.
  *	After set_max_dtoa_threads(n), a call set_max_dtoa_threads(m)
- *	with m <= n has has no effect, but a call with m > n is honored.
+ *	with m <= n has no effect, but a call with m > n is honored.
  *	Such a call invokes REALLOC (assumed to be "realloc" if REALLOC
  *	is not #defined) to extend the size of the relevant array.
 
diff --git a/test/natalie/complex_test.rb b/test/natalie/complex_test.rb
index 98d96cdf4..feda21524 100644
--- a/test/natalie/complex_test.rb
+++ b/test/natalie/complex_test.rb
@@ -22,7 +22,7 @@
     r.imaginary.should == 3
   end
 
-  it 'does not have have Comparable mixin more than once' do
+  it 'does not have Comparable mixin more than once' do
     Complex.ancestors.count(Comparable).should == 1
   end
 end