diff --git a/hw/syn/opae/sources_1c.txt b/hw/syn/opae/sources_1c.txt
index ea9e56aa..a429a492 100644
--- a/hw/syn/opae/sources_1c.txt
+++ b/hw/syn/opae/sources_1c.txt
@@ -3,7 +3,7 @@
 +define+SYNTHESIS
 +define+QUARTUS
 #+define+SCOPE
-##+define+PERF_ENABLE
+#+define+PERF_ENABLE
 
 #+define+DBG_PRINT_CORE_ICACHE
 #+define+DBG_PRINT_CORE_DCACHE
diff --git a/hw/syn/opae/sources_2c.txt b/hw/syn/opae/sources_2c.txt
index 068ba8c7..a70589f5 100644
--- a/hw/syn/opae/sources_2c.txt
+++ b/hw/syn/opae/sources_2c.txt
@@ -2,7 +2,7 @@
 
 +define+SYNTHESIS
 +define+QUARTUS
-##+define+PERF_ENABLE
+#+define+PERF_ENABLE
 
 vortex_afu.json
 QI:vortex_afu.qsf
diff --git a/hw/syn/opae/sources_4c.txt b/hw/syn/opae/sources_4c.txt
index f8de0b37..9ac95cdd 100644
--- a/hw/syn/opae/sources_4c.txt
+++ b/hw/syn/opae/sources_4c.txt
@@ -2,7 +2,7 @@
 
 +define+SYNTHESIS
 +define+QUARTUS
-##+define+PERF_ENABLE
+#+define+PERF_ENABLE
 
 vortex_afu.json
 QI:vortex_afu.qsf