diff --git a/mk/spec/zynq_zc702.mk b/mk/spec/zynq_zc702.mk
index c9962aa..ed6c157 100644
--- a/mk/spec/zynq_zc702.mk
+++ b/mk/spec/zynq_zc702.mk
@@ -1,7 +1,7 @@
 #
 # Pull in CPU specifics
 #
-SPECS += zynq cadence_gem zynq_uart1 zynq_sdhci
+SPECS += zynq cadence_gem zynq_sdhci
 
 REP_INC_DIR += include/spec/zc702
 REP_INC_DIR += include/spec/xilinx
diff --git a/mk/spec/zynq_zc706.mk b/mk/spec/zynq_zc706.mk
index 5add5c0..94d1b3b 100644
--- a/mk/spec/zynq_zc706.mk
+++ b/mk/spec/zynq_zc706.mk
@@ -1,7 +1,7 @@
 #
 # Pull in CPU specifics
 #
-SPECS += zynq cadence_gem zynq_uart1 zynq_sdhci
+SPECS += zynq cadence_gem zynq_sdhci
 
 REP_INC_DIR += include/spec/zc706
 REP_INC_DIR += include/spec/xilinx
diff --git a/mk/spec/zynq_zedboard.mk b/mk/spec/zynq_zedboard.mk
index dc7e4ac..34ee14b 100644
--- a/mk/spec/zynq_zedboard.mk
+++ b/mk/spec/zynq_zedboard.mk
@@ -1,7 +1,7 @@
 #
 # Pull in CPU specifics
 #
-SPECS += zynq cadence_gem zynq_uart1 zynq_i2c
+SPECS += zynq cadence_gem zynq_i2c
 
 REP_INC_DIR += include/spec/zedboard
 REP_INC_DIR += include/spec/xilinx