diff --git a/ide/Makefile b/ide/Makefile
index 92532dd583..a898a96a9b 100644
--- a/ide/Makefile
+++ b/ide/Makefile
@@ -905,10 +905,10 @@ gdb:
 	$(MAKE) -C text all GDB=1
 
 full:
-	$(MAKE) -C text all FULL=1 NEEDOPT=-Sg
+	$(MAKE) -C text all FULL=1 NEEDOPT+=-Sg
 
 fullgdb:
-	$(MAKE) -C text all FULL=1 GDB=1 NEEDOPT=-Sg
+	$(MAKE) -C text all FULL=1 GDB=1 NEEDOPT+=-Sg
 
 # This is necessary because we don't have all units separate in the
 # units targets
diff --git a/ide/Makefile.fpc b/ide/Makefile.fpc
index 059da42ad6..3e3566b6d6 100644
--- a/ide/Makefile.fpc
+++ b/ide/Makefile.fpc
@@ -12,10 +12,10 @@ gdb:
         $(MAKE) -C text all GDB=1
 
 full:
-        $(MAKE) -C text all FULL=1 NEEDOPT=-Sg
+        $(MAKE) -C text all FULL=1 NEEDOPT+=-Sg
 
 fullgdb:
-        $(MAKE) -C text all FULL=1 GDB=1 NEEDOPT=-Sg
+        $(MAKE) -C text all FULL=1 GDB=1 NEEDOPT+=-Sg
 
 # This is necessary because we don't have all units separate in the
 # units targets