diff --git a/compiler/Makefile b/compiler/Makefile
index 19be5a1b06..fcd30a9ece 100644
--- a/compiler/Makefile
+++ b/compiler/Makefile
@@ -477,7 +477,7 @@ ifneq ($(REVINC),)
 override LOCALOPT+=-dREVINC
 ifeq ($(REVSTR),)
 ifneq ($(SVNVERSION),)
-REVSTR:=$(shell $(SVNVERSION) -c .)
+REVSTR:=$(subst r,,$(subst r1:,,r$(shell $(SVNVERSION) -c .)))
 export REVSTR
 else
 ifeq ($(REVINC),force)
diff --git a/compiler/Makefile.fpc b/compiler/Makefile.fpc
index 61ac3c8880..d96b61b507 100644
--- a/compiler/Makefile.fpc
+++ b/compiler/Makefile.fpc
@@ -225,7 +225,7 @@ override LOCALOPT+=-dREVINC
 # svnversion executable is available
 ifeq ($(REVSTR),)
 ifneq ($(SVNVERSION),)
-REVSTR:=$(shell $(SVNVERSION) -c .)
+REVSTR:=$(subst r,,$(subst r1:,,r$(shell $(SVNVERSION) -c .)))
 export REVSTR
 else
 ifeq ($(REVINC),force)