diff --git a/openocd/cora-z7-10.cfg b/openocd/cora-z7-10.cfg
index dfde21e..5a8923c 100644
--- a/openocd/cora-z7-10.cfg
+++ b/openocd/cora-z7-10.cfg
@@ -33,6 +33,6 @@ reset halt
 
 # Disable MMU
 targets $_TARGETNAME_1
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]
 targets $_TARGETNAME_0
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]
diff --git a/openocd/kasli_soc.cfg b/openocd/kasli_soc.cfg
index f5b79fa..bd1ac60 100644
--- a/openocd/kasli_soc.cfg
+++ b/openocd/kasli_soc.cfg
@@ -42,6 +42,6 @@ reset halt
 
 # Disable MMU
 targets $_TARGETNAME_1
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]
 targets $_TARGETNAME_0
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]
diff --git a/openocd/redpitaya.cfg b/openocd/redpitaya.cfg
index e5fa719..a54778b 100644
--- a/openocd/redpitaya.cfg
+++ b/openocd/redpitaya.cfg
@@ -33,6 +33,6 @@ halt
 
 # Disable MMU
 targets $_TARGETNAME_1
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]
 targets $_TARGETNAME_0
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]
diff --git a/openocd/zc706.cfg b/openocd/zc706.cfg
index 84021f7..964a5a6 100644
--- a/openocd/zc706.cfg
+++ b/openocd/zc706.cfg
@@ -35,6 +35,6 @@ reset halt
 
 # Disable MMU
 targets $_TARGETNAME_1
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]
 targets $_TARGETNAME_0
-arm mcr 15 0 1 0 0 [expr [arm mrc 15 0 1 0 0] & ~0xd]
+arm mcr 15 0 1 0 0 [expr { [arm mrc 15 0 1 0 0] & ~0xd }]