diff --git a/arch/Linux-x86-64-gfortran-regtest.pdbg b/arch/Linux-x86-64-gfortran-regtest.pdbg
index 18554ee751..ac0e3bd88f 100644
--- a/arch/Linux-x86-64-gfortran-regtest.pdbg
+++ b/arch/Linux-x86-64-gfortran-regtest.pdbg
@@ -32,11 +32,10 @@ DFLAGS    += -D__MPI_VERSION=3 -D__PLUMED2 -D__SPGLIB
 DFLAGS    += -D__parallel -D__SCALAPACK
 DFLAGS    += -D__CHECK_DIAG
 
-WFLAGS     = -Wrealloc-lhs
-WFLAGS    += -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
+WFLAGS     = -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
 WFLAGS    += -Werror=conversion -Werror=intrinsic-shadow -Werror=intrinsics-std
-WFLAGS    += -Werror=line-truncation -Werror=tabs -Werror=target-lifetime
-WFLAGS    += -Werror=underflow -Werror=unused-but-set-variable
+WFLAGS    += -Werror=line-truncation -Werror=realloc-lhs -Werror=tabs
+WFLAGS    += -Werror=target-lifetime -Werror=underflow -Werror=unused-but-set-variable
 WFLAGS    += -Werror=unused-dummy-argument -Werror=unused-variable
 
 FCFLAGS    = $(CFLAGS) $(DFLAGS) $(WFLAGS)
diff --git a/arch/Linux-x86-64-gfortran-regtest.psmp b/arch/Linux-x86-64-gfortran-regtest.psmp
index 4ad262325b..d6c389ed5a 100644
--- a/arch/Linux-x86-64-gfortran-regtest.psmp
+++ b/arch/Linux-x86-64-gfortran-regtest.psmp
@@ -32,11 +32,10 @@ DFLAGS    += -D__MPI_VERSION=3 -D__PLUMED2 -D__SPGLIB
 DFLAGS    += -D__parallel -D__SCALAPACK
 DFLAGS    += -D__CHECK_DIAG
 
-WFLAGS     = -Wrealloc-lhs
-WFLAGS    += -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
+WFLAGS     = -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
 WFLAGS    += -Werror=conversion -Werror=intrinsic-shadow -Werror=intrinsics-std
-WFLAGS    += -Werror=line-truncation -Werror=tabs -Werror=target-lifetime
-WFLAGS    += -Werror=underflow -Werror=unused-but-set-variable
+WFLAGS    += -Werror=line-truncation -Werror=realloc-lhs -Werror=tabs
+WFLAGS    += -Werror=target-lifetime -Werror=underflow -Werror=unused-but-set-variable
 WFLAGS    += -Werror=unused-dummy-argument -Werror=unused-variable
 
 FCFLAGS    = $(CFLAGS) $(DFLAGS) $(WFLAGS)
diff --git a/arch/Linux-x86-64-gfortran-regtest.sdbg b/arch/Linux-x86-64-gfortran-regtest.sdbg
index 658f3139a8..87cb4a448d 100644
--- a/arch/Linux-x86-64-gfortran-regtest.sdbg
+++ b/arch/Linux-x86-64-gfortran-regtest.sdbg
@@ -22,11 +22,10 @@ CFLAGS     = -O1 -g -mtune=generic
 
 DFLAGS     = -D__FFTW3 -D__LIBINT -D__LIBXC -D__SPGLIB -D__CHECK_DIAG
 
-WFLAGS     = -Wrealloc-lhs
-WFLAGS    += -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
+WFLAGS     = -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
 WFLAGS    += -Werror=conversion -Werror=intrinsic-shadow -Werror=intrinsics-std
-WFLAGS    += -Werror=line-truncation -Werror=tabs -Werror=target-lifetime
-WFLAGS    += -Werror=underflow -Werror=unused-but-set-variable
+WFLAGS    += -Werror=line-truncation -Werror=realloc-lhs -Werror=tabs
+WFLAGS    += -Werror=target-lifetime -Werror=underflow -Werror=unused-but-set-variable
 WFLAGS    += -Werror=unused-dummy-argument -Werror=unused-variable
 
 FCFLAGS    = $(CFLAGS) $(DFLAGS) $(WFLAGS)
diff --git a/arch/Linux-x86-64-gfortran-regtest.ssmp b/arch/Linux-x86-64-gfortran-regtest.ssmp
index 7de5910066..1b59480370 100644
--- a/arch/Linux-x86-64-gfortran-regtest.ssmp
+++ b/arch/Linux-x86-64-gfortran-regtest.ssmp
@@ -22,11 +22,10 @@ CFLAGS     = -O1 -g -mtune=generic
 
 DFLAGS     = -D__FFTW3 -D__LIBINT -D__LIBXC -D__SPGLIB -D__CHECK_DIAG
 
-WFLAGS     = -Wrealloc-lhs
-WFLAGS    += -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
+WFLAGS     = -Werror=aliasing -Werror=ampersand -Werror=c-binding-type
 WFLAGS    += -Werror=conversion -Werror=intrinsic-shadow -Werror=intrinsics-std
-WFLAGS    += -Werror=line-truncation -Werror=tabs -Werror=target-lifetime
-WFLAGS    += -Werror=underflow -Werror=unused-but-set-variable
+WFLAGS    += -Werror=line-truncation -Werror=realloc-lhs -Werror=tabs
+WFLAGS    += -Werror=target-lifetime -Werror=underflow -Werror=unused-but-set-variable
 WFLAGS    += -Werror=unused-dummy-argument -Werror=unused-variable
 
 FCFLAGS    = $(CFLAGS) $(DFLAGS) $(WFLAGS)