diff --git a/techlibs/intel/synth_intel.cc b/techlibs/intel/synth_intel.cc
index e02885cd0..e70d2dcc5 100644
--- a/techlibs/intel/synth_intel.cc
+++ b/techlibs/intel/synth_intel.cc
@@ -239,7 +239,7 @@ struct SynthIntelPass : public ScriptPass {
 				    family_opt == "cycloneive" ||
 				    family_opt == "max10" ||
 				    help_mode) {
-				run("memory_bram -rules +/intel/common/brams_m9k.txt", "(if applicable for family)");
+				run("memory_bram -rules +/intel/common/brams_m9k.txt -register", "(if applicable for family)");
 				run("techmap -map +/intel/common/brams_map_m9k.v", "(if applicable for family)");
 			} else {
 				log_warning("BRAM mapping is not currently supported for %s.\n", family_opt);
diff --git a/techlibs/intel_alm/synth_intel_alm.cc b/techlibs/intel_alm/synth_intel_alm.cc
index 28852d7df..63a62c38e 100644
--- a/techlibs/intel_alm/synth_intel_alm.cc
+++ b/techlibs/intel_alm/synth_intel_alm.cc
@@ -225,12 +225,12 @@ struct SynthIntelALMPass : public ScriptPass {
 		}
 
 		if (!nobram && check_label("map_bram", "(skip if -nobram)")) {
-			run(stringf("memory_bram -rules +/intel_alm/common/bram_%s.txt", bram_type));
+			run(stringf("memory_bram -rules +/intel_alm/common/bram_%s.txt -register", bram_type));
 			run(stringf("techmap -map +/intel_alm/common/bram_%s_map.v", bram_type));
 		}
 
 		if (!nolutram && check_label("map_lutram", "(skip if -nolutram)")) {
-			run("memory_bram -rules +/intel_alm/common/lutram_mlab.txt", "(for Cyclone V)");
+			run("memory_bram -rules +/intel_alm/common/lutram_mlab.txt -register", "(for Cyclone V)");
 		}
 
 		if (check_label("map_ffram")) {