diff --git a/base/serial/psb_cspspmm.f90 b/base/serial/psb_cspspmm.F90
similarity index 100%
rename from base/serial/psb_cspspmm.f90
rename to base/serial/psb_cspspmm.F90
diff --git a/base/serial/psb_dspspmm.f90 b/base/serial/psb_dspspmm.F90
similarity index 100%
rename from base/serial/psb_dspspmm.f90
rename to base/serial/psb_dspspmm.F90
diff --git a/base/serial/psb_sspspmm.f90 b/base/serial/psb_sspspmm.F90
similarity index 100%
rename from base/serial/psb_sspspmm.f90
rename to base/serial/psb_sspspmm.F90
diff --git a/base/serial/psb_zspspmm.f90 b/base/serial/psb_zspspmm.F90
similarity index 100%
rename from base/serial/psb_zspspmm.f90
rename to base/serial/psb_zspspmm.F90