diff --git a/gcc/testsuite/g++.target/arm/arm.exp b/gcc/testsuite/g++.target/arm/arm.exp
index 182c1e9c964..7d873a4c89c 100644
--- a/gcc/testsuite/g++.target/arm/arm.exp
+++ b/gcc/testsuite/g++.target/arm/arm.exp
@@ -35,7 +35,7 @@ if ![info exists DEFAULT_CXXFLAGS] then {
 
 global dg_runtest_extra_prunes
 set dg_runtest_extra_prunes ""
-lappend dg_runtest_extra_prunes "warning: switch '-m(cpu|arch)=.*' conflicts with '-m(cpu|arch)=.*' switch"
+lappend dg_runtest_extra_prunes "warning: switch '-m(cpu|arch)=.*' conflicts with switch '-m(cpu|arch)=.*'"
 
 # Initialize `dg'.
 dg-init
diff --git a/gcc/testsuite/g++.target/arm/mve.exp b/gcc/testsuite/g++.target/arm/mve.exp
index 82cf928b73c..ed62561d972 100644
--- a/gcc/testsuite/g++.target/arm/mve.exp
+++ b/gcc/testsuite/g++.target/arm/mve.exp
@@ -33,7 +33,7 @@ if ![info exists DEFAULT_CXXFLAGS] then {
 # This variable should only apply to tests called in this exp file.
 global dg_runtest_extra_prunes
 set dg_runtest_extra_prunes ""
-lappend dg_runtest_extra_prunes "warning: switch -m(cpu|arch)=.* conflicts with -m(cpu|arch)=.* switch"
+lappend dg_runtest_extra_prunes "warning: switch '-m(cpu|arch)=.*' conflicts with switch '-m(cpu|arch)=.*'"
 
 set save-dg-do-what-default ${dg-do-what-default}
 set dg-do-what-default "assemble"
diff --git a/gcc/testsuite/gcc.target/arm/arm.exp b/gcc/testsuite/gcc.target/arm/arm.exp
index d306573305a..4d7c2adbe85 100644
--- a/gcc/testsuite/gcc.target/arm/arm.exp
+++ b/gcc/testsuite/gcc.target/arm/arm.exp
@@ -33,7 +33,7 @@ if ![info exists DEFAULT_CFLAGS] then {
 # This variable should only apply to tests called in this exp file.
 global dg_runtest_extra_prunes
 set dg_runtest_extra_prunes ""
-lappend dg_runtest_extra_prunes "warning: switch '-m(cpu|arch)=.*' conflicts with '-m(cpu|arch)=.*' switch"
+lappend dg_runtest_extra_prunes "warning: switch '-m(cpu|arch)=.*' conflicts with switch '-m(cpu|arch)=.*'"
 
 # Initialize `dg'.
 dg-init
diff --git a/gcc/testsuite/gcc.target/arm/mve/mve.exp b/gcc/testsuite/gcc.target/arm/mve/mve.exp
index f8590bfed0d..d09fc277612 100644
--- a/gcc/testsuite/gcc.target/arm/mve/mve.exp
+++ b/gcc/testsuite/gcc.target/arm/mve/mve.exp
@@ -33,7 +33,7 @@ if ![info exists DEFAULT_CFLAGS] then {
 # This variable should only apply to tests called in this exp file.
 global dg_runtest_extra_prunes
 set dg_runtest_extra_prunes ""
-lappend dg_runtest_extra_prunes "warning: switch -m(cpu|arch)=.* conflicts with -m(cpu|arch)=.* switch"
+lappend dg_runtest_extra_prunes "warning: switch '-m(cpu|arch)=.*' conflicts with switch '-m(cpu|arch)=.*'"
 
 set dg-do-what-default "assemble"