diff --git a/recipes/piscem/build.sh b/recipes/piscem/build.sh
index 482a75a82dec1..b2d78efc2f3e2 100644
--- a/recipes/piscem/build.sh
+++ b/recipes/piscem/build.sh
@@ -4,7 +4,13 @@ unamestr=`uname`
 
 if [ "$unamestr" == 'Darwin' ];
 then
+  if [[ $(uname -m) == 'x86_64' ]]; then
+    echo "OSX x86-64: attempting to fix broken (old) SDK behavior"
+    export CFLAGS="${CFLAGS} -D_LIBCPP_HAS_NO_C11_ALIGNED_ALLOC"
+    export CXXFLAGS="${CXXFLAGS} -D_LIBCPP_HAS_NO_C11_ALIGNED_ALLOC"
+  fi
   export MACOSX_DEPLOYMENT_TARGET=10.15
+  export MACOSX_SDK_VERSION=10.15
   export CFLAGS="${CFLAGS} -fcommon -D_LIBCPP_DISABLE_AVAILABILITY"
   export CXXFLAGS="${CXXFLAGS} -fcommon -D_LIBCPP_DISABLE_AVAILABILITY"
 else 
diff --git a/recipes/piscem/meta.yaml b/recipes/piscem/meta.yaml
index 0c261497c9b1d..ce3baa0e0adef 100644
--- a/recipes/piscem/meta.yaml
+++ b/recipes/piscem/meta.yaml
@@ -1,6 +1,6 @@
-{% set version = "0.10.3" %}
+{% set version = "0.10.4" %}
 {% set name = "piscem" %}
-{% set sha256 = "5bb7d856e28f7090456bbc9aa81120169cff76b66c47a642916d8d53e35bec8a" %}
+{% set sha256 = "665d3dc54bf4b9c50c02d190112177e270c1b992e61608f34c3e95b0e4a5b5d6" %}
 
 package:
   name: {{ name }}