diff --git a/.travis.yml b/.travis.yml
index 6aea0581..5cf0e08e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -53,9 +53,6 @@ matrix:
     - os: linux
       arch: amd64
       env: CC=gcc CXX=g++ COMPILER_FLAGS="" CONFIGURE_FLAGS="--with-malloc-conf=background_thread:true" EXTRA_CFLAGS="-Werror -Wno-array-bounds"
-    - os: osx
-      arch: amd64
-      env: CC=clang CXX=clang++ COMPILER_FLAGS="" CONFIGURE_FLAGS="" EXTRA_CFLAGS="-Werror -Wno-array-bounds -Wno-unknown-warning-option -Wno-ignored-attributes -Wno-deprecated-declarations"
     - os: osx
       arch: amd64
       env: CC=gcc CXX=g++ COMPILER_FLAGS="-m32" CONFIGURE_FLAGS="" EXTRA_CFLAGS="-Werror -Wno-array-bounds -Wno-unknown-warning-option -Wno-ignored-attributes -Wno-deprecated-declarations"
diff --git a/scripts/gen_travis.py b/scripts/gen_travis.py
index 992bf005..fe9d8403 100755
--- a/scripts/gen_travis.py
+++ b/scripts/gen_travis.py
@@ -87,6 +87,9 @@ def format_job(combination):
       'percpu_arena:percpu' in malloc_conf or 'background_thread:true' \
       in malloc_conf):
         return ""
+    # gcc is just a redirect to clang on OS X. No need to test both.
+    if os == 'osx' and compilers_unusual in combination:
+        return ""
     if len(malloc_conf) > 0:
         configure_flags.append('--with-malloc-conf=' + ",".join(malloc_conf))