diff --git a/rtl/openbsd/Makefile b/rtl/openbsd/Makefile
index 1892ac6ed6..8785cc61c5 100644
--- a/rtl/openbsd/Makefile
+++ b/rtl/openbsd/Makefile
@@ -340,16 +340,9 @@ BSDPROCINC=$(BSDINC)/$(CPU_TARGET)
 UNIXINC=$(RTL)/unix
 UNITPREFIX=rtl
 TARGETPROCINC=$(RTL)/openbsd/$(CPU_TARGET)
-ifeq ($(findstring 1.0.,$(FPC_VERSION)),)
 SYSTEMUNIT=system
 LINUXUNIT=
 PRT0=prt0
-else
-SYSTEMUNIT=sysbsd
-LINUXUNIT=
-override FPCOPT+=-dUNIX
-PRT0=prt0_10
-endif
 ifdef RELEASE
 override FPCOPT+=-Ur
 endif
diff --git a/rtl/openbsd/Makefile.fpc b/rtl/openbsd/Makefile.fpc
index 98436b7e6f..95fdecdb48 100644
--- a/rtl/openbsd/Makefile.fpc
+++ b/rtl/openbsd/Makefile.fpc
@@ -64,16 +64,9 @@ UNIXINC=$(RTL)/unix
 UNITPREFIX=rtl
 TARGETPROCINC=$(RTL)/openbsd/$(CPU_TARGET)
 
-ifeq ($(findstring 1.0.,$(FPC_VERSION)),)
 SYSTEMUNIT=system
 LINUXUNIT=
 PRT0=prt0
-else
-SYSTEMUNIT=sysbsd
-LINUXUNIT=
-override FPCOPT+=-dUNIX
-PRT0=prt0_10
-endif
 
 # Use new feature from 1.0.5 version
 # that generates release PPU files